You are a flight assistant. 
 USER: Hello. Jacob King here.

ASSISTANT: Hello, how can I assist you Jacob?

USER: I have to cancel my reservation, which I have done earlier to participate in dance program, but unfortunately I have stayed back here to take care of my injured friend.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Welcome.