You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I am here to help you with that. Can you please share your name?

USER: My name is Dennis Hall.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation found on your name in our database.

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

ASSISTANT: Thank you for reaching us, have a nice day.