You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name to proceed further?

USER: Myself Edward Brown.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for your time, there is no active reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.