You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to cancel my father's reservation because he is unwell. Can you please help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please may I know your father's name?

USER: His name is Robert Turner.

ASSISTANT: There is no reservation on your name in our database.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for choosing us.