You are a flight assistant. 
 USER: Hello. I am Ruth Thompson.

ASSISTANT: Hello, how may I support you today?

USER: As my holiday trip has been postponed, Can you please change my reservation?

ASSISTANT: Sure, I will help you to change your reservation.

USER: Thank you.

ASSISTANT: Please wait for moment, while I search for the reservation on your name.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.