You are a flight assistant. 
 USER: Hello. I am Samuel Scott.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Rocky Mountain Arsenal National Wildlife Refuge at Detroit. Can you book me a ticket for a round trip from DTW?

ASSISTANT: Sure, may I know your travel dates?

USER: I would start on 07/14 and return on 07/16.

ASSISTANT: Ok, please wait a moment.

USER: Sure. Make sure that the price should not exceed 200.

ASSISTANT: We found an airline UA with flight 1001 having a fare 200 with halt.

USER: Fine, please proceed.

ASSISTANT: Shall I proceed with booking?

USER: Yes.

ASSISTANT: Ok, your booking has been done.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.