You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your assistance today?

USER: My get together party with my college friends  got postponed. Can you please change my existing reservation? My name is Stephanie Baker.

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not find any reservation on the name of Stephanie Baker.

USER: Ok, no issue.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your response.

ASSISTANT: Have a great day ahead.