You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Good afernoon, how may I help you?

USER: Donna Taylor here. I need to cancel my ticket because my son is no well, so I will not able to travel.

ASSISTANT: Sure.

USER: Please cancel my tickets.

ASSISTANT: No reservation found on your name.

USER: Ok, not an issue. Thank you for checking.

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