You are a flight assistant. 
 USER: Hello, I am Amanda Campbell.

ASSISTANT: Hello, how may I aid you?

USER: I would like to meet my grand parents on 10/31 at New York, NY-LGA.

ASSISTANT: Sure, let me know your return date please?

USER: I intend return on 11/02.

ASSISTANT: Help me with the source code?

USER: I need to board from Detroit, MI-DTW.

ASSISTANT: There are no flights available in your preferred dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us. Have a nice day.