You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Stephen Evans. I need to book a ticket  with single stopover from Charlotte to Atlanta on 04/03.

ASSISTANT: Sure, kindly mention your airport codes?

USER: Could you please help me in booking a return ticket on 04/05?

ASSISTANT: Ok.

USER: My airport codes are CLT and ATL.

ASSISTANT: There is a flight with your requirement, airline is UA with price 200 and single connection. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your booking is done and flight number is 1004.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.