You are a flight assistant. 
 USER: Hello, Kenneth Rodriguez here.

ASSISTANT: Hello Kenneth, how may I help you?

USER: I want to change my reservation as I have an urgent meeting at my office, can you please do that for me?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no reservation is found by your name.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for contacting us.