You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Paul Lee. I am planning to attend Religious festivals in Charlotte, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: I would like to travel on 04/21 to 04/23.

ASSISTANT: Let me know your preferable airport codes please?

USER: My source point is WA-SEA to destination point is NC-CLT.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline JetBlue, flight number: 1015. Shall I proceed for booking?

USER: Sure.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your valuable information.

ASSISTANT: Thanks for communicating us. Have a good day.