You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Sandra Young. I want to cancel my flight ticket. Can you please help me with that?

ASSISTANT: Sure, please wait for minute, let me check.

USER: Ok, thank you for your positive response.

ASSISTANT: I could not find any reservation with your name in our database.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: My pleasure.