You are a flight assistant. 
 USER: Hello. I am Scott Thompson.

ASSISTANT: Hello, how may I help you today?

USER: I want to attend my friend birthday at Charlotte, can you please book me a ticket?

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: My preferable airport codes are from HOU to CLT.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a halt.

ASSISTANT: Could you please provide me your journey dates?

USER: I would like to fly on 06/13 and return on 06/15.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: We found a UA airline, flight number: 1004, price: 100 with one connection.

USER: Ok, please book this ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.