You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Linda Anderson. Owing to an emergency, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, wait a minute.

USER: Ok.

ASSISTANT: We found a reservation, shall I cancel it?

USER: Please cancel it.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.