You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency, I need to cancel my flight ticket booking. Can you please help me with that one?

ASSISTANT: Sure, may I know your good name please?

USER: Thank you and my name is Joshua Johnson.

ASSISTANT: Please wait for a moment.

USER: Sure, I can wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Not a problem with that one, thank you for checking my previous reservation status.

ASSISTANT: Thank you for approaching us.

USER: Welcome.