You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I have to perform a music program at Apollo theater in New York.

ASSISTANT: Ok, may I know your travelling dates and origin?

USER: So, please book a ticket on 01/25 and later I should return on 01/27. My origin is SFO.

ASSISTANT: Can you provide your destination airport code?

USER: My Destination is New York, LGA.

ASSISTANT: May I know your name?

USER: I am Michelle Hall.

ASSISTANT: Ok, there are no flights available according to your request.

USER: Ok , thanks for your information.

ASSISTANT: Thank you for choosing us.