You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am going to Austin Brewery tour on 04/18, can you book me a flight ticket within price 200?

ASSISTANT: Sure, please help me with your airport codes?

USER: Sure, I will fly from BOS to AUS.

ASSISTANT: Ok, let me know your return date please?

USER: I would like to back on 04/20.

ASSISTANT: Ok, any connection limit?

USER: Yes, I need a lay by.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1005, airline- Southwest, price- 100 with connection matches your requested details. Shall I proceed?

USER: Ok, please proceed with the booking.

ASSISTANT: Ok, for further proceeding can  i have your name please?

USER: Sure, I am Karen Carter.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your support.

ASSISTANT: Thank you for choosing us.