You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I'm planning to visit Denver botanical gardens, can you please book a ticket from IAH to DEN?

ASSISTANT: Sure, we are here to help you. Can you please share me your travel dates?

USER: Sure, my planned departure and return travel dates are 13th and 15th of September.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connected flight.

ASSISTANT: Is there any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Please share your name.

USER: My name is James Evans.

ASSISTANT: There is a flight with your requirement, airline is Spirit Airlines with price 100 and single connection. Shall I proceed with booking?

USER: That's fine, you can proceed for booking the ticket.

ASSISTANT: Your booking is done and flight number is 1006 in economy class.

USER: Thank you so much for your help.

ASSISTANT: Thanks for reaching us.