You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want change my reservation as in new reservation I want a direct flight for my journey. Can you help me with that?

ASSISTANT: Sure, we are happy to help you. Please let me know your good name.

USER: Sure, you can check the reservation on the name of Frank Hall.

ASSISTANT: Ok, please wait for a moment, I will check the status and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, we are sorry to inform you that there was no reservation found on your name in our database.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.