You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please check with my previous booking status and help me with changing my journey dates?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Jack Allen.

ASSISTANT: Please wait for a moment.

USER: Ok, I will be waiting for your response.

ASSISTANT: Sorry Allen, there is no reservation found as per your name in our database.

USER: Oh! That's fine. Anyways, thank you for checking for my reservation.

ASSISTANT: Thank you for reaching us with a query.

USER: You are most welcome.