You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Collins.

ASSISTANT: How can I amend you?

USER: I am planning to start a new spoken English training at Denver, help me in booking my flight ticket from New York NY-LGA.

ASSISTANT: Sure. May I know your destination airport code?

USER: My destination airport code is CO-DEN.

ASSISTANT: Let me know your trip dates.

USER: My travelling dates will be 05/12, my return date is 05/14.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Thanks for waiting, there is a flight with airline: AA, flight number:1002, 1 connection, price 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.