You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from HOU to DTW as a business trip, can you do the reservation?

ASSISTANT: Sure, I am happy to help you. Can I have your travelling dates?

USER: My trip dates are 09/21 and 09/23.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I need only direct flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: George Gonzalez here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for contacting us.