You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am looking for a flight from DCA to ORD, can you help me in booking?

ASSISTANT: Ok, may I know your trip dates?

USER: Sure, my planned travel dates are Jan 05 and Jan 07.

ASSISTANT: May I know your connection limit?

USER: Please look for a connecting flight.

ASSISTANT: May I know your name?

USER: Myself Timothy Allen.

ASSISTANT: Flight-1003 is available for you with Hawaiian Airlines. Can I book it?

USER: That's fine, please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for the service.

ASSISTANT: Thank you for choosing us.