You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to book a ticket from DEN to DTW for business meet.

ASSISTANT: How can I assist you? Sure, may I know your travelling dates?

USER: My travelling dates are from 12/09 to 12/11. If there is 1 connection, please book the ticket on the name of Mark Nelson.

ASSISTANT: I found a flight with price 100 and flight number is 1009. Is it ok for you?

USER: Please proceed.

ASSISTANT: I confirmed your ticket successfully.

USER: Thank you for your help.

ASSISTANT: May I know the name please?

USER: Mark Nelson here.

ASSISTANT: Thank you.

USER: Welcome.