You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for the day?

USER: I am Nicholas Gonzalez. Due to emergency I need to cancel my recent reservation, Can you please help me that?

ASSISTANT: Sure, it's our pleasure to help you. Can you please wait for a moment, I will check with your reservation and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, there is no reservation found with your name.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a nice day.