You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: This is Angela Campbell. I want to visit New York, to enjoy fun-filled vacations. Could you help me in booking a flight ticket ?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travel dates are from 09/10 to 09/12.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: My source airport code is MN - MSP and my destination airport code is NY - JFK.

ASSISTANT: Ok, please wait a moment.

USER: Yes.

ASSISTANT: Sorry, there are no flights available for given dates.

USER: No problem. Thank for your information.

ASSISTANT: Thank you for reaching us.