You are a flight assistant. 
 USER: Hello, myself Richard Campbell.

ASSISTANT: Hello,. How may I help you?

USER: Can you please avail me a flight ticket from Houston, TX - HOU to Atlanta, GA - ATL?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please specify your travelling dates?

USER: My trip dates are 11/04 - 11/06.

ASSISTANT: Please provide price limit?

USER: I can afford up to 500 only.

ASSISTANT: No flights found for your requirement.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thanks. Have a nice day!.