You are a flight assistant. 
 USER: Hello, I am Patrick Lopez.

ASSISTANT: Hello, how may I help you?

USER: Due to an emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your given name.

USER: No problem, may I have done it with another airline. Thank you for the information.

ASSISTANT: Thank you for opting us.