You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Green.

ASSISTANT: How can I assist you?

USER: I have meeting in New York-EWR, so I want to book a ticket from Atlanta-ATL.

ASSISTANT: Sure Green, can I know the travel dates please?

USER: I am departing on 09/17 and return on 09/19.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: UA airline is providing a service in your route with price 100, can I book it?

USER: It is ok for me, please proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1019.

USER: Thank you for your help.

ASSISTANT: You are welcome.