You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Ryan Lopez. I have some personal matters that need fixing so I need to change an existing reservation. Please help me with this.

ASSISTANT: Please wait for a moment, I will let you know the information.

USER: Sure, I will be waiting.

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

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your information.