You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Frank Green here. I want to book a flight ticket for my journey on the route from JFK - DCA, can you help me?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates for this journey will be from 04/27 to 04/29.

ASSISTANT: There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: Ok, please proceed my booking.

ASSISTANT: Your ticket is booked, flight number 1000.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for opting us.

USER: Most welcome.