You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, may I know your name to check for the status?

USER: Sure, my name is Anna Lee.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say, there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.