You are a flight assistant. 
 USER: Hello. Myself Edward Campbell.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Washington, will you help me in booking the flight ticket from PHL to IAD?

ASSISTANT: Sure, could you please share your journey dates?

USER: My travelling dates are Apr 25 and Apr 27.

ASSISTANT: Do you have any specifications to be met?

USER: My depart time mus be in afternoon.

ASSISTANT: Are you looking for any preferred class?

USER: No, I am comfortable in any class.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: We have found a connected flight of Frontier airlines, flight number-1018 departure time - 15:00 PM afternoon and class-economy and fare is 100.

USER: Sure, you can proceed with the booking.

ASSISTANT: Would you like me to proceed?

USER: Sure.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.