You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please book me a flight ticket from IAD to BOS?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: I am Christopher Carter.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travel dates are from Feb 15th to Feb 17th.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: Yes, I want a single connection.

ASSISTANT:  Is there any other criteria?

USER: I would prefer an economy class to travel.

ASSISTANT: Thank you for the information, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight in Spirit airlines with the price of 200 having one connection and economy class. Can I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.