You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you need from our travel agency?

USER: Actually to my Snooker's Competition is postponed, so that I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, I am here to help you. Can you please tell me your name?

USER: Thank you. Deborah Collins.

ASSISTANT: Sorry for the inconvenience, there is no reservation found with your name in our database.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: You are most welcome. Thank you for reaching us.