You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Owing to an emergency, my live concert got preponed. So I had a request to you to change my existing reservation?

ASSISTANT: Ok, may I know your good name please?

USER: Sure, I had a reservation with name Ronald King.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found a reservation with your name, please provide me your journey details.

USER: Sure, my new reservation departs from Detroit-DTW to Denver-DEN. And I would like to travel on 11/13 and 11/15. And I need one halt in between journey.

ASSISTANT: Ok, may I know your price limit?

USER: Sure, it will be helpful if price limit is 5000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found a UA airline, flight number: 1007, price: 100 with one connection. Shall I proceed with this booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thanks for choosing us.