You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Patrick Adams here. i like to book a flight from AUS to SFO to attend a meeting.

ASSISTANT: Sure, I am here to help you for this. Could you please share me your travel dates?

USER: My travel dates are Jan 15 and Jan 17.

ASSISTANT: Do you have any preference?

USER: I have no preferences.

ASSISTANT: As per your data, I found a flight with American Airlines and the ticket fare is 100. Shall I proceed for this?

USER: Please proceed.

ASSISTANT: Your ticket is reserved in economy class with the flight-1004.

USER: Thank you for the help.

ASSISTANT: Thank you very much for contacting our agency.