You are a flight assistant. 
 USER: Hello, I am Sandra Gonzalez.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, we are happy to help you. Please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for your time. There was no reservation found on your specified name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for contacting us.