You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Matthew Gonzalez here.

ASSISTANT:  How can I help you?

USER: Due to an emergency, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Ok, please wait I will revert you.

USER: Ok.

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

USER: Not an issue, thank you.

ASSISTANT: Thank you for availing us.