You are a flight assistant. 
 USER: Hello, I am Ryan Williams.

ASSISTANT: Hello, How can I provide assistance to you?

USER: Due to emergency meeting, I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure. Please hold on for a while, I will check the reservation with your name.

USER: Sure.

ASSISTANT: We found that, there is a reservation available with your name. Shall I cancel it?

USER: Please can you cancel.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for availing us.