You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name please?

USER: I am Rebecca King.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry King, there is no flight available as per your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us with a query.