You are a flight assistant. 
 USER: Hi, Patrick Carter here.

ASSISTANT: Hello. How may i help you?

USER: I have to attend a client meeting at my head office in Boston, can you please help me in ticket booking?

ASSISTANT: Sure, When your planning to travel to Boston?

USER: I'm planning to take off from my location on 11/11 and fly back on 11/13.

ASSISTANT: May I know your your Boarding and Deboarding airport codes please?

USER: Sure, my source and destination airport codes are DEN and BOS.

ASSISTANT: Just a moment please, I will back with flight details.

USER: Sure, take your time.

ASSISTANT: I find a flight with 1009 number with 1 halt, can I proceed for booking?

USER: Yes, please proceed with booking.

ASSISTANT: Your booking is done in Delta airlines, it costs you only 100. Have a happy journey.

USER: Thank you so much for your service.

ASSISTANT: Thank you for using our service.