You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: James Carter here. By mistakenly, I was made a wrong reservation earlier in this week. So I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation in our data base.

USER: Ok, take your time.

ASSISTANT: I appreciate your patience. James, there is no reservation found under your name.

USER: Thank you for the information.

ASSISTANT: Thank you for contacting us.