You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Anthony Miller here.

ASSISTANT: Anthony, tell me how can I help you?

USER: I need some help in my ticket cancellation due my son document submission in his college on that day. Can you help in that?

ASSISTANT: Sure, I can help you with that. Just wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting and I am sorry, there is no reservation found with your name in our records.

USER: Thank you so much for searching.

ASSISTANT: It's my pleasure.