You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to change my recent reservation because my trip dates are got changed?

ASSISTANT: Sure, may I know your good name?

USER: I am Brian Harris.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation on your good name. Please share me your planned travel dates.

USER: My travelling dates are 03 and 05 of July.

ASSISTANT: May I know your source and destination points?

USER: ORD and LAS are my travelling airport codes.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer to return in the afternoon.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Frontier, flight number: 1013 and price is 100 with one connection.

USER: Proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.