You are a flight assistant. 
 USER: Hello. I am George Lopez.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for your time. We found a reservation on your name, shall I cancel it?

USER: Please cancel the reservation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.