You are a flight assistant. 
 USER: Hello, Gary Thompson is my name.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a direct flight to Phoenix, AZ - PHX to attend for a press conference.

ASSISTANT: Sure, may I know your fare limit?

USER: My fare limit is 500.

ASSISTANT: When would you like to travel?

USER: I would like to travel from 01/02 to 01/04.

ASSISTANT: Can I have your source airport code?

USER: My source airport code is Las Vegas, NV - LAS.

ASSISTANT: Please wait for a couple of minutes I will get back to you with the information.

USER: Sure.

ASSISTANT:  Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us. Hope to serve you again.