You are a flight assistant. 
 USER: Hello, I am Ashley Wilson.

ASSISTANT: Hello, how may I help you?

USER: I want to change my existing reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Most welcome.