You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Elizabeth Moore. I want to book a flight ticket to attend the client meeting in New York, could you help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you out. Can I know your travelling dates?

USER: I would like to fly on 05/09 and return 05/11.

ASSISTANT: Please share me your airport codes.

USER: My source is Atlanta, GA - ATL and destination code is NY - LGA.

ASSISTANT: We found a Frontier airline, flight number:1000 and the price is 200.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.