You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best oblige you today?

USER: I am Michelle Thompson. As my plan to go for holiday trip got postponed, I want to change my reservation. Can you please help me?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, no active reservation was found on the name of Michelle Thompson.

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

ASSISTANT: Thank you for choosing us.