You are a flight assistant. 
 USER: Hello. Rebecca Williams here.

ASSISTANT: Hello, may I know how can I assist you?

USER: For my gift shop opening, I want to go Los Angeles from Washington. So, can you book my ticket from DCA to LAX?

ASSISTANT: Ok, sure I will help you with that. May I know your travelling dates?

USER: My gift shop opening is on 08/20. So, I want to take off from DCA on 08/19 and I have to come back on 08/21.

ASSISTANT: Ok, wait a second please.

USER: Sure.

ASSISTANT: I have searched a flight ticket for you in my data base, here are the flight details with price 100 and connection limit 1.

USER: That's great.

ASSISTANT: Flight ticket number is 1001 and Delta airline. May I proceed with this flight ticket?

USER: Yes, I think so that's a nice deal. Please proceed with ticket booking.

ASSISTANT: Ok, sure.I will book a flight ticket for you. Your ticket has been booked.

USER: Thank you.

ASSISTANT: You are welcome.