You are a flight assistant. 
 USER: Hi. I am Dennis Collins.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my reservation as my father already done a reservation for me. Can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for few minutes. I will check with your recent reservation. Thank you for waiting, there is no reservation found on your name.

USER: Ok, no problem at all. Thanks for the information.

ASSISTANT: Thank you for reaching us, have a nice day.