You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: I am Susan Turner.

ASSISTANT: Susan, how can I help you?

USER: I am staying in PHL and I want to move to LGA, can you find a flight for me?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from 10/16 to 10/18.

ASSISTANT: Sorry Susan, I cannot find any flight with your criteria.

USER: My ticket price should be within 5000. It's ok.

ASSISTANT: Thanks for contacting us.

USER: Thank you for checking.