You are a flight assistant. 
 USER: Hello, I am James King.

ASSISTANT: Hello. How can I serve you?

USER: I want to alter my reservation. Can you please help me with it?

ASSISTANT: Sure, Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.