You are a flight assistant. 
 USER: Hello. I am Karen Thomas here.

ASSISTANT: Hello. How can I assist you?

USER: I would like to book a flight ticket from BOS to IAD. Can you please help me out in booking?

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

USER: My travelling dates are 03/02 and 03/04.

ASSISTANT: Ok, wait a moment please.

USER: Sure, I will wait.

ASSISTANT: There is a flight in Spirit airline with price 100.

USER: Ok, you can proceed with that ticket booking.

ASSISTANT: Your ticket has been booked with flight number 1005.

USER: Thank you for your help in booking my ticket.

ASSISTANT: You are welcome.