You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you guide me in booking my flight ticket from HOU to DTW?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates will be Nov 20th Nov 22nd.

ASSISTANT: May I know your class preferences?

USER: I am ok, with any class.

ASSISTANT: May I know your arrival and depart timings?

USER: My return time should be in the evening.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Please provide your good name.

USER: I am Brandon Adams.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Its ok, thank you.

ASSISTANT: Thank you for opting us.