You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know what kind of service you are expecting from us?

USER: I would like to travel from DCA to DFW as a business trip.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: In which month, you have planned your journey?

USER: My trip dates are 09/19 and 09/21.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable with any class and I need only direct flight.

ASSISTANT: May I know your depart time and arrival time?

USER: I am comfortable with any time, Please do the booking.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: On whose name, I have to reserve this flight ticket?

USER: Angela Turner here.

ASSISTANT: We found a direct flight with fare of 100 and 1015 flight number. Shall I make it confirm?

USER: Go ahead.

ASSISTANT: Your seat has been reserved with Hawaiian Airlines in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.