You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have to go LGA for attending a business meeting there, can you please book a flight ticket from DCA airport?

ASSISTANT: Ok, let me know your travelling dates to go.

USER: My departure date is 11/14 and please book my return ticket also on 11/16.

ASSISTANT: Frontier airline providing you service with connection 1 and price 200. Can I book it?

USER: Please book this flight ticket for me.

ASSISTANT: May I know your name to book the ticket?

USER: Sure, my name is William Hall.

ASSISTANT: Ok, your ticket has been done with flight-1006.

USER: Thank you for your help.

ASSISTANT: Welcome, hope you will enjoy the airline service.