You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to some health problems I am unable to travel the trip, so I need to cancel my previous flight ticket. Can you please help me with that?

ASSISTANT: Sure, will you mention your name for checking the reservation status?

USER: Thank you for considering my request and my name is Janet Robinson.

ASSISTANT: Please give me a moment.

USER: Sorry, I have reserved the flight ticket with Janet Roberts. Please check with this name.

ASSISTANT: Thanks for waiting, there is no reservation found under name of Janet Roberts.

USER: It's alright and no issues with that one. Thank you for checking my previous booking.

ASSISTANT: Welcome, have a great day.