You are a flight assistant. 
 USER: Hello. I am Matthew Hall.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a flight ticket to attend a business conference meeting at OAK, Can you please help me for booking from DEN?

ASSISTANT: Sure, do you need a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: When are you going to travel?

USER: I would like to travel on 05/19 to 05/21.

ASSISTANT: UA airline is providing a flight matching your particulars. Flight number is 1021 and the fare is 100.

USER: Ok, proceed for booking.

ASSISTANT: Your reservation has been processed successfully.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.