You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Patricia Carter, can you be my helping hand to change in existing reservation? Because I am shifting to another as climate is not good here.

ASSISTANT: Sure, please wait a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation on your name.

USER: Thank you for your valuable information.

ASSISTANT: Thank you so much for communicating us.