You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER:  I have to cancel my flight ticket that I unable to travel to meet my sister that she came to meet me, can you help me in that one?

ASSISTANT: Sure, we are here to help you. May I know your name?

USER: Thank you for accepting my request. Sure, my name is Kenneth Lopez.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

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

ASSISTANT: Thanks for approaching us.