You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please tell me how can I assist you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Ok, sure I will help you with that. Can you please tell me your name?

USER: Myself Mark Jones.

ASSISTANT: Sorry, Jones no reservation found on your name in my database.

USER: No problem, thanks for checking.

ASSISTANT: Most welcome.