You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Elizabeth Roberts here. Recently, I had booked a ticket to my home town, but due to office meet my trip got postponed. Could you please change my reservation?

ASSISTANT: Sure, wait a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation has been found on your name.

USER: It's alright.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.