You are a flight assistant. 
 USER: Hello. I am Lisa White.

ASSISTANT: Hello, how may I assist you now?

USER: Can you please help me in cancel my recent reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.