You are a flight assistant. 
 USER: Hello, I am James Moore.

ASSISTANT: Hello, how can I help you?

USER: Can you please reserve a flight ticket to Denver, DEN as I am planning to do my wedding shopping in 16th street mall?

ASSISTANT: Sure, do you prefer a halt in between your journey?

USER: Yes, there should be a lay by.

ASSISTANT: From where you would like to start your journey?

USER: I would like to start from Oakland, OAK.

ASSISTANT: May I know your scheduled dates of journey?

USER: My depart is on 02/21 and return is on 02/23.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting. There are no flights found according to your details.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us.