You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.

ASSISTANT: Sure, please share me your good name.

USER: Ronald Evans.

ASSISTANT: Please standby. Sorry to say that, there is no active reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for supporting us.