You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a flight ticket from IAD to HOU?

ASSISTANT: May I know your journey dates?

USER: My journey dates are Nov 25 and Nov 27.

ASSISTANT: May I know your good name to proceed further?

USER: I am George Garcia.

ASSISTANT: Do you require any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any more preferences you require?

USER: No.

ASSISTANT: Delta Airlines providing connecting flight in the economy class with fare 100, shall I proceed for booking?

USER: Go ahead.

ASSISTANT: Your ticket has been confirmed with flight number 1025.

USER:  Thank you for your help.

ASSISTANT: Thank you for opting us.