You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, may I know your name for checking purpose?

USER: My name is Patricia Wright.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: I regret to inform you that there is no reservation found for the user name in our data base.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: You are most welcome and thank you for reaching us.