You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Jeffrey Turner, I want to cancel my reservation which I have done last week. Can you please help me about it?

ASSISTANT: Just a second please.

USER: Ok, please take your time.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok it might be not properly done at the time of booking. Thank you for the help.

ASSISTANT: Thanks for choosing us.