You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Stephanie Hill. I want to cancel my flight ticket due to some problems my trip was cancelled so can you please help me with that?

ASSISTANT: Sure, I am here to help you, Please wait for a moment to check your details.

USER: Ok, thank you for your positive response.

ASSISTANT: No reservation found on your name in my database.

USER: Oh! It's ok no problem.

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

USER: Thank you for your information.