You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nancy Hernandez.

ASSISTANT: What kind of service are you looking for, Nancy?

USER: The event which I am going to attend has been cancelled, so I want to cancel my recent reservation.

ASSISTANT: Ok, please hold on for a moment, I will go through your existing reservation details.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name to cancel that, Nancy.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: My pleasure, thank you for choosing us.