You are a flight assistant. 
 USER: Hello, I am Michelle Moore.

ASSISTANT: Hello, how can I help you today?

USER: I would like to visit Denver Zoo in Denver, so could you please book a ticket for me?

ASSISTANT: Sure, I'll help you in that. May I know your airport codes please?

USER: Sure, my source and destination airport codes are IAD and DEN.

ASSISTANT: Ok, can you please provide your journey dates?

USER: I would like to go on 08/25 and return back on 08/27.

ASSISTANT: Ok, please be on hold.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Hawaiian airlines is having a flight with travel charge of 200, shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been booked with flight-1017, have a safe journey.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.