You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am Catherine Edwards and I have to change my ticket reservation, can you help me in that one?

ASSISTANT: Give me a moment to check the active reservation under your name.

USER: Sure, take your time.

ASSISTANT: Sorry Edwards, I have not find any active reservations under your name.

USER: I will check it later, no important right now, thank you for checking.

ASSISTANT: My pleasure, thank you for employing our service.