You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you aid me to change my reservation due to emergency?

ASSISTANT: Ok, please can I know your name to check?

USER: Betty Moore here.

ASSISTANT: Sorry, there is no reservation been found on your name to change.

USER: No issue. Thank you.

ASSISTANT: Thank you for choosing our agency.