You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Cynthia Wilson.

ASSISTANT: Can I know the what help is required from my end?

USER: I just want to cancel my recent reservation, because my health is not good to travel.

ASSISTANT: Sure Cynthia, please wait a moment.

USER: Ok.

ASSISTANT: I have found your reservation, If you want cancel it then there will be charge of 100, shall I proceed?

USER: Ok, proceed.

ASSISTANT: I have cancelled your reservation. Thank you for reaching us.

USER: Thank you for your services.

ASSISTANT: Welcome.