You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Melissa Davis, planning a trip to Washington. Can you please book me a ticket from HOU to DCA?

ASSISTANT: May I know your desired travel dates please?

USER: My preferable journey dates are from 06/09 to 06/11.

ASSISTANT: Please wait a while.

USER: Sure.

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

USER: Please reserve my ticket with this airlines.

ASSISTANT: Your ticket is booked, flight number 1010 with Spirit airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for opting us.