You are a flight assistant. 
 USER: Hi, I am William Young.

ASSISTANT: Hello, how can I help you?

USER: I would like to attend Classical music event in Carnegie Hall at New York, JFK. Can you please help me with it?

ASSISTANT: Sure, I am here to help you. May I know when you want to travel?

USER: I want to travel on dates 02/24 and 02/26.

ASSISTANT: Ok, please help me with your source code.

USER: Source code is IAH.

ASSISTANT: May I know how much you can afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thanks for the help.