diff --git a/python/agents/travel-concierge/uv.lock b/python/agents/travel-concierge/uv.lock
index 00a41adf2..54773d2b9 100644
--- a/python/agents/travel-concierge/uv.lock
+++ b/python/agents/travel-concierge/uv.lock
@@ -1146,7 +1146,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/1f/cb/48e964c452ca2b92175a9b2dca037a553036cb053ba69e284650ce755f13/greenlet-3.3.0-cp311-cp311-macosx_11_0_universal2.whl", hash = "sha256:e29f3018580e8412d6aaf5641bb7745d38c85228dacf51a73bd4e26ddf2a6a8e", size = 274908, upload-time = "2025-12-04T14:23:26.435Z" },
     { url = "https://files.pythonhosted.org/packages/28/da/38d7bff4d0277b594ec557f479d65272a893f1f2a716cad91efeb8680953/greenlet-3.3.0-cp311-cp311-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:a687205fb22794e838f947e2194c0566d3812966b41c78709554aa883183fb62", size = 577113, upload-time = "2025-12-04T14:50:05.493Z" },
     { url = "https://files.pythonhosted.org/packages/3c/f2/89c5eb0faddc3ff014f1c04467d67dee0d1d334ab81fadbf3744847f8a8a/greenlet-3.3.0-cp311-cp311-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:4243050a88ba61842186cb9e63c7dfa677ec146160b0efd73b855a3d9c7fcf32", size = 590338, upload-time = "2025-12-04T14:57:41.136Z" },
-    { url = "https://files.pythonhosted.org/packages/80/d7/db0a5085035d05134f8c089643da2b44cc9b80647c39e93129c5ef170d8f/greenlet-3.3.0-cp311-cp311-manylinux_2_24_s390x.manylinux_2_28_s390x.whl", hash = "sha256:670d0f94cd302d81796e37299bcd04b95d62403883b24225c6b5271466612f45", size = 601098, upload-time = "2025-12-04T15:07:11.898Z" },
     { url = "https://files.pythonhosted.org/packages/dc/a6/e959a127b630a58e23529972dbc868c107f9d583b5a9f878fb858c46bc1a/greenlet-3.3.0-cp311-cp311-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:6cb3a8ec3db4a3b0eb8a3c25436c2d49e3505821802074969db017b87bc6a948", size = 590206, upload-time = "2025-12-04T14:26:01.254Z" },
     { url = "https://files.pythonhosted.org/packages/48/60/29035719feb91798693023608447283b266b12efc576ed013dd9442364bb/greenlet-3.3.0-cp311-cp311-musllinux_1_2_aarch64.whl", hash = "sha256:2de5a0b09eab81fc6a382791b995b1ccf2b172a9fec934747a7a23d2ff291794", size = 1550668, upload-time = "2025-12-04T15:04:22.439Z" },
     { url = "https://files.pythonhosted.org/packages/0a/5f/783a23754b691bfa86bd72c3033aa107490deac9b2ef190837b860996c9f/greenlet-3.3.0-cp311-cp311-musllinux_1_2_x86_64.whl", hash = "sha256:4449a736606bd30f27f8e1ff4678ee193bc47f6ca810d705981cfffd6ce0d8c5", size = 1615483, upload-time = "2025-12-04T14:27:28.083Z" },
@@ -1154,7 +1153,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f8/0a/a3871375c7b9727edaeeea994bfff7c63ff7804c9829c19309ba2e058807/greenlet-3.3.0-cp312-cp312-macosx_11_0_universal2.whl", hash = "sha256:b01548f6e0b9e9784a2c99c5651e5dc89ffcbe870bc5fb2e5ef864e9cc6b5dcb", size = 276379, upload-time = "2025-12-04T14:23:30.498Z" },
     { url = "https://files.pythonhosted.org/packages/43/ab/7ebfe34dce8b87be0d11dae91acbf76f7b8246bf9d6b319c741f99fa59c6/greenlet-3.3.0-cp312-cp312-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:349345b770dc88f81506c6861d22a6ccd422207829d2c854ae2af8025af303e3", size = 597294, upload-time = "2025-12-04T14:50:06.847Z" },
     { url = "https://files.pythonhosted.org/packages/a4/39/f1c8da50024feecd0793dbd5e08f526809b8ab5609224a2da40aad3a7641/greenlet-3.3.0-cp312-cp312-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:e8e18ed6995e9e2c0b4ed264d2cf89260ab3ac7e13555b8032b25a74c6d18655", size = 607742, upload-time = "2025-12-04T14:57:42.349Z" },
-    { url = "https://files.pythonhosted.org/packages/77/cb/43692bcd5f7a0da6ec0ec6d58ee7cddb606d055ce94a62ac9b1aa481e969/greenlet-3.3.0-cp312-cp312-manylinux_2_24_s390x.manylinux_2_28_s390x.whl", hash = "sha256:c024b1e5696626890038e34f76140ed1daf858e37496d33f2af57f06189e70d7", size = 622297, upload-time = "2025-12-04T15:07:13.552Z" },
     { url = "https://files.pythonhosted.org/packages/75/b0/6bde0b1011a60782108c01de5913c588cf51a839174538d266de15e4bf4d/greenlet-3.3.0-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:047ab3df20ede6a57c35c14bf5200fcf04039d50f908270d3f9a7a82064f543b", size = 609885, upload-time = "2025-12-04T14:26:02.368Z" },
     { url = "https://files.pythonhosted.org/packages/49/0e/49b46ac39f931f59f987b7cd9f34bfec8ef81d2a1e6e00682f55be5de9f4/greenlet-3.3.0-cp312-cp312-musllinux_1_2_aarch64.whl", hash = "sha256:2d9ad37fc657b1102ec880e637cccf20191581f75c64087a549e66c57e1ceb53", size = 1567424, upload-time = "2025-12-04T15:04:23.757Z" },
     { url = "https://files.pythonhosted.org/packages/05/f5/49a9ac2dff7f10091935def9165c90236d8f175afb27cbed38fb1d61ab6b/greenlet-3.3.0-cp312-cp312-musllinux_1_2_x86_64.whl", hash = "sha256:83cd0e36932e0e7f36a64b732a6f60c2fc2df28c351bae79fbaf4f8092fe7614", size = 1636017, upload-time = "2025-12-04T14:27:29.688Z" },
@@ -1731,7 +1729,7 @@ wheels = [
 
 [[package]]
 name = "nltk"
-version = "3.9.2"
+version = "3.9.4"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "click" },
@@ -1739,9 +1737,9 @@ dependencies = [
     { name = "regex" },
     { name = "tqdm" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/f9/76/3a5e4312c19a028770f86fd7c058cf9f4ec4321c6cf7526bab998a5b683c/nltk-3.9.2.tar.gz", hash = "sha256:0f409e9b069ca4177c1903c3e843eef90c7e92992fa4931ae607da6de49e1419", size = 2887629, upload-time = "2025-10-01T07:19:23.764Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/74/a1/b3b4adf15585a5bc4c357adde150c01ebeeb642173ded4d871e89468767c/nltk-3.9.4.tar.gz", hash = "sha256:ed03bc098a40481310320808b2db712d95d13ca65b27372f8a403949c8b523d0", size = 2946864, upload-time = "2026-03-24T06:13:40.641Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/60/90/81ac364ef94209c100e12579629dc92bf7a709a84af32f8c551b02c07e94/nltk-3.9.2-py3-none-any.whl", hash = "sha256:1e209d2b3009110635ed9709a67a1a3e33a10f799490fa71cf4bec218c11c88a", size = 1513404, upload-time = "2025-10-01T07:19:21.648Z" },
+    { url = "https://files.pythonhosted.org/packages/9d/91/04e965f8e717ba0ab4bdca5c112deeab11c9e750d94c4d4602f050295d39/nltk-3.9.4-py3-none-any.whl", hash = "sha256:f2fa301c3a12718ce4a0e9305c5675299da5ad9e26068218b69d692fda84828f", size = 1552087, upload-time = "2026-03-24T06:13:38.47Z" },
 ]
 
 [[package]]