You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Linda Clark here.

ASSISTANT: Clark, how can I guide you today?

USER: I had a business meeting in New York, but it was postponed due to some reasons. Can you help me in changing my recent reservation?

ASSISTANT: Sure, I will help you with that, please hold on for a moment to check your reservation status.

USER: Ok, take your time.

ASSISTANT: Clark, I did not find any reservation with your name in my database.

USER: That's ok.

ASSISTANT: Thank you for utilising our services.

USER: Anyways, thank you for checking.