You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Raymond Lee here.

ASSISTANT: How can I help you?

USER: I want to travel from Charlotte to Phoenix for attending a business trip. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are from CLT to PHX.

ASSISTANT: On which dates you like to travel.

USER: My departure date is 01/22 and return date is 01/24. Make sure my price limit is 200.

ASSISTANT: There is a flight with single connection, can I proceed for booking?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your booking is done in 1002 flight.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.