You are a flight assistant. 
 USER: Hi, I am Emily Smith.

ASSISTANT: Hello, how can I serve you?

USER: Can you please change my reservation as the tour which I planned to go got postponed?

ASSISTANT: Sure, please wait a minute, I will check the reservation on your name and revert to you.

USER: OK.

ASSISTANT: Thanks for your time. We did not find any reservation on your name.

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

ASSISTANT: Thank you for approaching us.