You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Kimberly Wright here.

ASSISTANT: Yes, Wright.

USER: Can you change my previous reservation which I have done with my name.

ASSISTANT: Sure, I will help you out. Please allow me  a moment to check the previous reservation on your name.

USER: Sure, take your time.

ASSISTANT: Sorry Wright, there is no reservation found on your name.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.