You are a flight assistant. 
 USER: Hello. I am Edward Davis.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Sure, we can help you. Please wait for  a while.

USER: Ok.

ASSISTANT: Sorry we did not find any reservation against your name in our database.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.