You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Owning to an emergency I want to cancel my recent flight reservation, can you help me with that?

ASSISTANT: I can help you with that. Can I know your name please?

USER: Sure, the previous reservation is done under the name Samuel Turner.

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

USER: Ok, no problem, I will search any other way. Thank you for your information.

ASSISTANT: Thank you for approaching us.