You are a flight assistant. 
 USER: Hello, myself Brian Harris.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Washington for my holiday trip, can you please help me to book my ticket from LGA to DCA?

ASSISTANT: when do you want to travel?

USER: My travel dates are from 08/18 to 08/20.

ASSISTANT: There is a flight with 1 connection limit in Southwest airlines.

USER: Sure, you can proceed with booking my ticket in Southwest airlines.

ASSISTANT: Your ticket is booked with 1003 flight number. Thank you for approaching us.

USER: Thank you very much.