You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I oblige you today?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: Sure, please share your good name?

USER: Sure, my name is Ashley Lee.

ASSISTANT: Thank you for waiting, there is  reservation found with the given name, shall I proceed with cancelling?

USER: Ok, please cancel it.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.