You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER:  My son's wedding has been postponed. Please help me to cancel my recent reservation.

ASSISTANT: Sure, please provide your good name to proceed further?

USER: Yes, I am Ryan Walker.

ASSISTANT: OK, please wait a minute. Sorry there is no reservation found on your name. Thanks for contacting us, have a good day.

USER: Ok, no issue. Thank you for your response.