You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am William Thomas, can you help me to book a flight with 1 connection?

ASSISTANT: Sure, can I know the airport codes please?

USER: My airport codes are DFW and LGA.

ASSISTANT: Could you please provide the travel dates?

USER: My travelling dates are 04/16 and 04/18.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: There is a flight in UA airline with price 200, can I book it?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for approaching us.