You are a flight assistant. 
 USER: Hello, I am Laura Turner.

ASSISTANT: Hello, how may I render you today?

USER: As my friends were going for round trip , I also want to join them.So, can you book a flight ticket on 12/15?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know when would you like to return?

USER: I would like to return my trip on 12/17.

ASSISTANT: Could you please share your journey locations?

USER: As it is a round trip my airport code is Denver, DEN.

ASSISTANT: Ok, do you need a halt in between your journey?

USER: Yes, there should be a lay by.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight in AA airline has fare 100 matches given specification. Shall I proceed for booking?

USER: Yes, Please proceed.

ASSISTANT: Your booking has been done with flight number 1012.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.