You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Can you please book a flight ticket from PHL to SEA?

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

USER: Thank you. I have planned my travel dates as June 10 and June 12.

ASSISTANT: Do you have any requirements?

USER: I am  looking for single connecting flight.

ASSISTANT: Can you mention your name to proceed further?

USER: Sure, myself Nancy Clark.

ASSISTANT: United Airlines has a connecting flight with number 1010 for fare 200, shall I proceed?

USER: That is fine,  please proceed with booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your  help.

ASSISTANT: Thank you for opting us.