You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in changing my reservation as my plan to go for holiday trip got postponed?

ASSISTANT: Sure, we are glad to help you to change it.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Ruth Johnson.

ASSISTANT: Thanks for providing your name, please wait.

USER: Sure.

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

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for availing our service.