You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I provide assistance to you today?

USER: I need to surprise my friend on his birthday at Boston, MA - BOS. Can you make reservation with name Nancy Taylor?

ASSISTANT: Sure, we are perky to help you. Can you please provide your take off airport code?

USER: I need to board at Detroit, MI - DTW.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I prefer a halt.

ASSISTANT: May I know when you have planned to travel?

USER: 12/14 and 12/16 are my travelling dates.

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

USER: Ok.

ASSISTANT:  Thanks for your precious time. We found Spirit airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with airline number 1005.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for choosing us.