You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to on going tornado at mu source point. Can you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: To check the reservation data base we need your name, can you please share me your name?

USER: I am Alexander Anderson.

ASSISTANT: Alexander Anderson, there is no active reservation on your name.

USER: Ok, no problem. Thank you for your quick response.

ASSISTANT: Thank you so much for choosing us.