You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kevin Williams.

ASSISTANT: How may I help you?

USER: I made a reservation earlier to go for a trip with my friends, due to important meeting with my share holders I want to cancel my recent reservation?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name. Thank you for reaching us, have a nice day.

USER: Thant's ok, thank you.