You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Richard Martinez. I need to cancel my reservation due to my planned event got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, give me  a minute.

USER: Thank you for that. I will wait for your response.

ASSISTANT: On your request, I have successfully cancelled your reservation.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.