You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ruth Roberts.

ASSISTANT: How may I help you?

USER: I have booked a flight ticket in the last month but suddenly the planned trip got postponed to other dates, can you please help me in flight ticket modification?

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight reserved with your name to change it.

USER: No issues with that one, thank you for your immediate help in providing the information.

ASSISTANT: Thanks for contacting us, have a good day.

USER: Welcome.