You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. On what way, can I assist you the day?

USER: Can you please change my reservation as the baby shower program which I want to attend got postponed?

ASSISTANT: Sure, I will help you. That is why I am here. To change your reservation, we need your name. Can you provide it?

USER: Benjamin Collins is my name.

ASSISTANT: Thanks for the details, please wait.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry Benjamin, Unfortunately we did not find any active reservation on your name to change it.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for visiting us.