You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit Washington to meet my class mates, will you help me in booking the flight ticket from DFW to IAD?

ASSISTANT: Sure, I am happy to help you with your concern. May I know your planned dates of journey?

USER: My travelling dates are Aug 07 and Aug 09.

ASSISTANT: Do you have any connection limit preference?

USER: I need a flight with single connection.

ASSISTANT: Do you have any airline preference?

USER: No, I don't have any other specifications.

ASSISTANT: Do you have any class preference?

USER: No, thank you for asking.

ASSISTANT: Are you looking for any time preference?

USER: No.

ASSISTANT: Could you please help me with your name?

USER: Myself Patricia Jones.

ASSISTANT: Here I found a connecting flight  with Frontier Airlines and the airfare is about 100. Shall I proceed in booking with flight 1014?

USER: Sure, you can proceed with the booking.

ASSISTANT: For an economy class your ticket is booked and the departure time is 5:00 hours and the arrival time is 0:00 hours.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching our agency.