You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you?

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, may I know your for checking?

USER: Sure, my name is Edward Hernandez.

ASSISTANT: Give me a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's fine.

ASSISTANT: Thank you for reaching us.