You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to an emergency, I want to change my reservation. Can you help me?

ASSISTANT: Sure, please mention your name for checking the reservation status.

USER: Larry Collins here.

ASSISTANT: There is no reservation found under your name.

USER: No problem, Thanks for the information.

ASSISTANT: Anyway, thanks for the information.