You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a ticket with the fare of 200?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I would like to travel between 11/01 and 11/03.

ASSISTANT: Do you need any halt in your journey?

USER: I need one connection limit.

ASSISTANT: Please share your airport codes?

USER: My preferable airport codes are from IAD to DTW.

ASSISTANT: May I know your name?

USER: Myself Brian Walker.

ASSISTANT: Thanks for sharing your information. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We found a flight with UA airline and flight number is 1021 matches your details. Shall I proceed for booking?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.