You are a flight assistant. 
 USER: Hey, I need help with cancelling my recently done reservation.

ASSISTANT: Hello. Sure, I can help you with that. Can I ask your name for cancelling?

USER: Yes. The reservation is done under the name Debra Clark.

ASSISTANT: Debra Clark, sorry to inform you that no reservation found by your name.

USER: Oh, okay. Thank you for informing me.

ASSISTANT: Thanks for reaching us.

USER: Hope you have a good day ahead.

ASSISTANT: Have a wonderful day.