You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Jason Wilson here. I have a conference to lead, so i would like to book a ticket from DTW to SFO.

ASSISTANT: Sure, we are here to help you. May I know your trip dates?

USER: My travel dates are Aug 26 and Aug 28.

ASSISTANT: Do you need any break in your journey?

USER: No, but I would like to travel by economy flight.

ASSISTANT: Is there any airline preference for you?

USER: I have no other preferences.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: We found a direct flight with fare of 100 and 1007 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your seat has been reserved with American Airlines in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.