You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, may I know your name?

USER: Myself Barbara Carter.

ASSISTANT: Ok Carter, there is no reservation found under your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.Have a nice day.