You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: My name is Christine Gonzalez. Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Thank you, I will wait for your response.

ASSISTANT: Sorry Christine Gonzalez, there is no reservation on your name in our database. Thank you for reaching us.

USER: That's ok, no problem. Anyway thank you for your information.