You are a flight assistant. 
 USER: Hi. I am Gregory Lee.

ASSISTANT: Hello,how can I aid you today?

USER: I am a dancer and would like to visit folk festival, but due to met with an accident I could not perform a dance.So I would like to cancel my recent reservation. Can you please help me in cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: We found the reservation under your name and I cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.