You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I assist you?

USER: I'm Gregory Wright. Please book a ticket from San Francisco, CA-SFO to Washington DC-DCA.

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: My departure date is 10/21 and will return by 10/23.

ASSISTANT: May I know your price limit?

USER: Ticket price limit is 1000.

ASSISTANT: There is a flight-1006 of UA airlines, shall I proceed?

USER: Please book a flight.

ASSISTANT: Ok, your booking is done.

USER: May I know flight connections?

ASSISTANT: Sure, it is with 1 connection.

USER: Thanks.

ASSISTANT: Welcome.