You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Myself Kathleen Roberts. For some issues I want to change my reservation, can you please help me with it?

ASSISTANT: Hope you are doing well, I will help you with that.

USER: Thanks.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok.

ASSISTANT: Do you have any other dates to travel?

USER: Not at decided.

ASSISTANT: Ok, thank you for approaching us, have a nice day.

USER: Anyway thank you for the information.