You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Williams.

ASSISTANT: How can I assist you?

USER: I am planning to book a ticket to attend a meeting at BOS. Can you please help me out to book a flight ticket from DEN?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: I would like to travel on Mar 15 and return back on Mar 17.

ASSISTANT: Ok, do you have any other specifications?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Hawaiian airlines is providing a flight on that route with ticket fare of 100, is that ok for you?

USER: That's fine, please proceed the booking.

ASSISTANT: I have successfully booked your ticket with flight-1000, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.