You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you today?

USER: I am Benjamin Miller. I want to book a flight ticket to attend a business meeting in Minneapolis, could you help me in booking a flight ticket?

ASSISTANT: Sure, do you have any price limit?

USER: I can afford up to 200.

ASSISTANT: Help me with the planned trip dates?

USER: I would like to fly on 10/05 and return on 10/07.

ASSISTANT: Could you please share me your airport abbreviates?

USER: My source is TX - DFW and destination is MN - MSP.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in an airline AA with the number 1018. Shall I proceed to book?

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.