You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Actually I have booked a flight ticket to attend a dance competition but the event is postponed for now. Can you please help me in changing the details?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Can you please provide on whose name before you have booked the flight ticket?

USER: I have reserved the flight ticket with the name Ronald Lopez. So, please check the status.

ASSISTANT: Please hold on a moment to check.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that there is no reservation found on your name in our records.

USER: It's ok, thank you for checking the ticket status.

ASSISTANT: Thank you for reaching us, have a great day.

USER: You are welcome.