You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I would like to lunch a new car so I want to go from IAD to DFW.

ASSISTANT: Sure, I am euphoric to help you with booking.

USER:  Thank you for your response.

ASSISTANT: May I know on which dates you are planning to start and return?

USER: My journey dates are Feb 27th and Feb 29th.

ASSISTANT: Do you prefer any way station in between journey?

USER: I need a connecting flight.

ASSISTANT: Is there any time concern for you?

USER: I am comfortable with any timings.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I do not have any other requirements.

ASSISTANT:  If you can help me with your name, I can begin looking up for the availability of flights.

USER: Joseph Phillips here.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in Delta airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please carry on.

ASSISTANT: Your booking is done with flight number 1006.

USER: Thank you, You have done a good job.

ASSISTANT: Thank you for choosing us.