You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Margaret Smith.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Ok, please wait a moment while I check.

USER: Sure.

ASSISTANT: Sorry, there is no flight ticket been reserved on your name to cancel.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing our agency.