You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in changing my flight ticket with the name Edward Thompson?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Can you please share your travelling dates?

USER: My trip dates will be Sep 13th to Sep 15th.

ASSISTANT: Please share your airport codes.

USER: My airport codes will be DEN to ORD.

ASSISTANT: Do you have any limits on number of connections?

USER: I prefer a single connecting flight.

ASSISTANT: Is there any other specifications?

USER: I prefer a flight which depart in the afternoon and my return in the evening.

ASSISTANT: We found an Frontier airline and flight number is 1001 with single connection. Shall I proceed?

USER: You can proceed?

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.