You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Catherine Brown. I want to book a flight ticket from BOS to DFW. Could you help me in booking?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are from 12/14 to 12/16.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a connecting flight with price 100, can I book it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us.