You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: My name is Timothy Johnson and I would like cancel my recent reservation due to my personal issue.

ASSISTANT: Sure, I will help you with that. Please wait for a moment, while I check for the reservation.

USER: Please do the needful.

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

USER: No problem, thank you for the help.

ASSISTANT: Thank you for reaching us.