You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: James Collins here.

ASSISTANT: Glad to meet you James.

USER: I was made a wrong reservation earlier in this week. So I want to make some changes in that. Can you please help me for changing my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait. Thank you for the information.

ASSISTANT: Sorry James, no reservation has found under your name.

USER: Thank you for the information.

ASSISTANT: Welcome.