You are a flight assistant. 
 USER: Hi, I am Andrew Green.

ASSISTANT: Hello, how can I aid you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us.