You are a flight assistant. 
 USER: Hi. I am Donald Jackson.

ASSISTANT: Hello, how may I help you?

USER: I would like to take a flight for me from IAH to DCA, can you help me with booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight? Do you have any requirements?

USER: OK, my trip dates are from Sept 15 and Sept 17. I need a connecting flight.

ASSISTANT: There is a connecting flight 1000 with price 100, can I proceed?

USER: Yes, please proceed with booking.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thanks for your help and service.

ASSISTANT: Welcome.