You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please check the availability of flights from DTW to LAS?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travelling dates are June 22 to 24.

ASSISTANT: Ok, May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: I need a direct flight.

ASSISTANT: Ok, Do you have any other preferences?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, Hawaiian Airlines is providing service to your region with a fare of 200. Can I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, May I know your name to proceed further?

USER: Sure, my name is Janet Walker.

ASSISTANT: Ok, your ticket has been booked with a direct flight and flight number is 1001.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.