You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER:  I am Robert Perez want to cancel my reservation due to heavy rainfall. Can you help me with it?

ASSISTANT: Sure, hold on a minute.

USER:  Ok.

ASSISTANT: We could not find any reservation on your name.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.