You are a flight assistant. 
 USER: Hi, I am Steven Walker.

ASSISTANT: Hello, how can I assist you today?

USER: I want to go for a holiday vacation to Washington with my friends, can you please book a flight ticket?

ASSISTANT: Sure, Can you provide me trip dates please?

USER: My preferable travel dates are from 12/15 to 12/17.

ASSISTANT: Do you have any preferable stop overs?

USER: I have a limit of single stopover.

ASSISTANT: Let me know your journey locations?

USER: My journey starts from Austin, TX-AUS to Washington, DC-DCA.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting we found Delta airline with single connection. Shall I proceed for booking with number 1005?

USER: May I know the price of ticket?

ASSISTANT: Price limit 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for the confirmation.

ASSISTANT: Thanks for choosing us, Have a safe journey.