You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help 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, I will help you.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: Sure, my name is Melissa Carter.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Shall I cancel it?

USER: Ok, you can cancel it.

ASSISTANT: Your flight ticket has been cancelled.

USER: Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us, have a nice day.