You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am George Jackson.

ASSISTANT: How may I help you?

USER: Can you help me to book a flight ticket from DCA to DEN?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 28 and 30 of Apr.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1005. Shall I proceed with this flight?

USER: Proceed to booking.

ASSISTANT: Your booking is done.

USER: Thanks for helping me.

ASSISTANT: Most welcome.