You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Houston Zoo with my friend, please help me in booking a ticket from DEN to HOU.

ASSISTANT: Please provide me your itinerary travel dates.

USER: My planned travel dates are on Sept 8 and Sept 10.

ASSISTANT: Could you let us know if you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Would you like to travel by direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Richard Rodriguez.

ASSISTANT: Give me a moment. American Airlines with flight 1018 is providing service on your route with connecting flight and the cost is 100.

USER: Sure, I would like to depart and return in the afternoon. Please check it once.

ASSISTANT: Your ticket is booked where depart DEN 14:00 hours Sept 08 and arrival HOU 5:00 hours Sept 10.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.