You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be of your assistance?

USER: As my interview got preponed. So Can you please change my reservation?

ASSISTANT: Sure, may I know on whose name you want me to check your details?

USER: Ticket has been reserved with name Lisa Green.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for reaching us.