You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

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

ASSISTANT: Sure, I will help you with changing your reservation. Please wait a minute I will check and let you know the details. May I know your name please?

USER: My name is Paul Thompson.

ASSISTANT: Thank you. There were no reservation found with the given name in our database.

USER: Ok, no issue. Thanks for your quick response.

ASSISTANT: Thank you for opting us, have a good day.