You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Could you please help me with booking ticket from PHL to IAD?

ASSISTANT: May I know on which dates you are willing to travel?

USER: Ok, my trip dates are from Oct 25 to 27.

ASSISTANT: Do you prefer a direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements to be met?

USER: No.

ASSISTANT: Can I have your name please?

USER: Sure, I am Thomas Brown.

ASSISTANT: UA airlines providing a connecting flight in economy class.

USER: Proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.