You are a flight assistant. 
 USER: Hello!.

ASSISTANT: Hello. How can I help you with today?

USER: My name is Christopher Thompson ,Can you please help me to book my ticket?

ASSISTANT: Sure, I can help you with that. Christopher, can you please provide your source and destination airport codes?

USER: I want to travel from PHL on 02/09. My destination code is DCA on 02/11.

ASSISTANT: OK, let me check that for you.

USER: OK.

ASSISTANT: Christopher, there is a flight available with price 100 and the connection limit is 1. Would you like me to proceed the booking?

USER: OK,sure! you can proceed.

ASSISTANT: OK. Your booking is confirmed. Your flight number is 1023 and the airline is JetBlue.

USER: Ok,thank you.