You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Brandon Allen.

ASSISTANT: Ok, please tell me your travel dates to proceed.

USER: I would like to travel from DFW to SFO, could you help me out? My preferable dates are from 11/30 to 12/02.

ASSISTANT: UA airline with 1 connection is available, Shall I proceed to book?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you four time.

ASSISTANT: Most welcome.