You are a flight assistant. 
 USER: Hi. Myself Eric Brown.

ASSISTANT: Hello. How can I guide you? xfj'.

USER: There is a meeting with my client in Charlotte, please book a flight ticket form Detroit.

ASSISTANT: May I know your flight codes?

USER: Sure, I want to travel from DTW to CLT.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 08/16 and 08/18.

ASSISTANT: As per your details, you have a flight with UA and price 100. May I proceed to book your ticket?

USER: Sure, please proceed it.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you so much.

ASSISTANT: You are welcome.