You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight from PHL to attend a meeting at Washington. Can you find me a flight to IAD?

ASSISTANT: Sure, may I know your trip dates please?

USER: I plan to fly on 27 July and return on 29 July.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any particular timings for travelling?

USER: I am fine with any flight timing.

ASSISTANT: Would you like any break in between your journey?

USER: I prefer a connecting flight.

ASSISTANT: Do you want to fly in economy class or business class?

USER: I do not have any preference related to class.

ASSISTANT: Ok, please share your name to proceed further.

USER: My name is Anthony Green.

ASSISTANT: Delta Airlines has a connecting flight with number 1017 for fare 100, shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us and have a safe flight.