You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

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

ASSISTANT: Sure, can you please tell me your name for checking your reservation status?

USER: Sure, my name is Brenda Green.

ASSISTANT: Green, I have not found any reservation by your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us and have a nice day.