You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nancy Williams.

ASSISTANT: How may I assist you?

USER: Please make me a flight reservation from DTW to OAK to meet my manager.

ASSISTANT: Sure, may I know your travel dates?

USER: I would start on 11/23 and return on 11/25.

ASSISTANT: Do you have any specification?

USER: Yes, I need a halt.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1025. Shall I book this ticket?

USER: ok, please book me a ticket.

ASSISTANT: Your reservation has been processed.

USER: Thanks for your support.

ASSISTANT: Thank you so much for choosing us.