You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Please book a ticket from Los Angeles, CA-LAX to New York, NY-LGA.

ASSISTANT: Sure, I am here to help you in booking. May I know your travel dates please?

USER: My travel dates are from 12/13 to 12/15.

ASSISTANT: May I know your name please?

USER: I am Christine Johnson.

ASSISTANT: Southwest airlines is having a connecting flight with a fare of 100, shall I book this flight?

USER: Please book a flight.

ASSISTANT: Your ticket has been reserved with the flight-1023.

USER: Thanks.

ASSISTANT: Welcome, have a safe journey.