You are a flight assistant. 
 USER: Hi, I am Kathleen Williams.

ASSISTANT: Hello. How may I help you today?

USER: I am very excited to visit fun live music crawl in Philadelphia, PA-PHL, can you help me with reservation?

ASSISTANT: I understand your request, we will be happy to assist you.

USER: Thank you.

ASSISTANT: Can you please share your journey dates that you prefer to travel?

USER: My travel dates are 11/12 and 11/14.

ASSISTANT: Do you have any other requirement?

USER: I need a single connection.

ASSISTANT: Kindly share your source airport code.

USER: Source airport code is LAS.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Ok.

ASSISTANT: We are unable to provide flight in between your journey routes due to heavy snowfall at destination point.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the help.