You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Dorothy Hill. I want to book a flight ticket with a single connection, could you help me in booking a flight ticket?

ASSISTANT: Sure, we are so glad to help you. May I know your journey dates?

USER: My departure is 08/06 and return date on 08/08. My price limit is 5000.

ASSISTANT: Could you provide your starting and landing points?

USER: I am planning to visit Houston Zoo in TX - IAH and my source from CO - DEN.

ASSISTANT: Please, give me a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight of UA airline, with 100 fare. Flight number as 1002 with single connection.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my flight ticket.

ASSISTANT: Thank you for choosing us.