You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Patrick Allen. I want to book a flight ticket with a price limit of 500 for attending my grandfather's funeral in Denver.

ASSISTANT: Ok, Can you provide me your trip dates please?

USER: I want to start on 09/11, return on 09/13.

ASSISTANT: May I know your journey locations please?

USER: My source and destination airport codes are DC-IAD, CO-DEN.

ASSISTANT: Do you have any connection limits?

USER: I want one connection in between my journey.

ASSISTANT: Ok, wait fr some time.

USER: Sure.

ASSISTANT: Thanks for waiting we found  JetBlue airline with single connection fare of 200. Shall I proceed for booking?

USER: Ok, you can proceed to booking.

ASSISTANT: Your ticket has been confirmed. Thanks for choosing us.

USER: Thanks for booking a flight ticket.