You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brenda Williams here.

ASSISTANT: Brenda, how can I assist you?

USER: I want to cancel my ticket due to heavy floods in my place.

ASSISTANT: Sure, I will help you with that. Let me check your reservation status.

USER: Ok.

ASSISTANT: Sorry Brenda, no reservation found on your name in our database.

USER: No problem, thank you.

ASSISTANT: You are welcome and have a nice day.