You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I would like to travel from HOU to DTW as a holiday trip.

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: My trip dates are 11/03 and 11/05.

ASSISTANT: Do you need any break?

USER: I need only direct flight.

ASSISTANT: May I know your name?

USER: Patrick Young here.

ASSISTANT: We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.