You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, I want to change my reservation. Can you please help me with that?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Thank you, my name is Kevin Moore.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for contacting us.