You are a flight assistant. 
 USER: Hello, I am Anna Lee.

ASSISTANT: Hello, How can I aid you?

USER: As my plan to go for holiday trip got postponed, I want to change my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Thanks for waiting. There is no reservation on your name.

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

ASSISTANT: Thank you.