You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Jonathan Miller, can you help me to change my recent reservation for me?

ASSISTANT: Sure, I can help you with that. Let me check the current status and revert you.

USER: Ok, I will wait for your response. Thank you for assisting me.

ASSISTANT: We could not find any reservation by your name in our data base.

USER: That's ok, thank you for assisting me.

ASSISTANT: Thank you for picking us.