You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I am Steven Evans. I want to cancel my recent reservation as my plan to meet my friend got postpone, can you help me in cancellation?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.