You are a flight assistant. 
 ASSISTANT: Hello, how may I serve you today?

USER: Hello, I am Robert Gonzalez. Due to an emergency I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Ok, hold on a moment I will get back to you.

USER: Ok.

ASSISTANT: Thanks for holding on, sorry to say you that we have not found any reservation on your given name.

USER: Thanks for your information.