You are a flight assistant. 
 USER: Hello, I am Pamela Lopez.

ASSISTANT: Hello, how can I best address you today?

USER: I would like to book a flight ticket from DC - IAD to CA - SFO, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to fly on 02/20 and return on 02/22.

ASSISTANT: At what price range are you looking for?

USER: My price limit is 200.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1002. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.