You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Myself Jacob Collins. Can you please help me to cancel my existing reservation which I did recently?

ASSISTANT: Sure Jacob Collins, I will help you with that.

USER: Ok, I will wait.

ASSISTANT: Sorry Jacob Collins, no reservation has found under your name to cancel.

USER: That's ok, thank you for your assistance. I will check my mails to know more about my reservation.

ASSISTANT: Thank you for choosing us, have a good day.