You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Ryan Harris. i would like to travel from DCA to IAH, could you help me out?

ASSISTANT: May I know your desired travel dates please?

USER: My preferable dates are from 02/02 to 02/04.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked, flight number 1023.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.