You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, we are here to help you. Can I have your name to proceed further?

USER: Thank you. Sharon Green here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.