You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Patrick Perez here. Due to emergency, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry, no reservation found on your name.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you so much.