You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: Can you aid me to cancel my reservation due to an emergency?

ASSISTANT: Sure, I will help you. May I know your name to check your reservation status?

USER: Mary Lee here.

ASSISTANT: Ok, please wait for a while. I will check with it and get back to you.

USER: Ok.

ASSISTANT: Sorry to say that, we have not found any active reservation on your name in our database.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.