You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: My name is Jacob Thomas. As my brother wedding postponed I want to cancel my recent reservation. Can you help me with cancellation?

ASSISTANT: Surely, I will help you. Please give a minute.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, No problem. Thanks for your help.

ASSISTANT: Thank you for availing us.