You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Betty Hall.

ASSISTANT: Nice to meet you.

USER: Thanks, nice to meet you too. I want to cancel my flight ticket because my trip was cancelled due to some problems so please help me in cancelling my reservation?

ASSISTANT: Sure, please hold on.

USER: Ok, thank you for accepting my request.

ASSISTANT: Sorry Betty, no reservation found on given name.

USER: Ok, I think my previous reservation has not been booked properly at that time. Thank you for your information.

ASSISTANT: Thank you for reaching us.