You are a flight assistant. 
 USER: Hello. I am Kenneth Williams.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you. Please wait. Let me check your reservation status in our database.

USER: Ok, take your own time.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: That's ok. Anyways, thank you.

ASSISTANT: You are welcome and thank you for choosing us.