You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Catherine Collins. My holiday trip has been postponed. So, I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Catherine Collins, can you give me a moment to check please?

USER: Sure, take your time.

ASSISTANT: Sorry Catherine Collins, no reservation found under your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Sorry for the inconvenience.

USER: No problem.

ASSISTANT: Have a nice day.