You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Please reserve me a flight ticket from DEN to HOU.

ASSISTANT: Sure, can you share your trip dates?

USER: My travel dates are June 19 and June 21.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight on this route.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: No, thanks for asking.

ASSISTANT: Please forward your name.

USER: I am Samuel Roberts.

ASSISTANT: We found a connecting flight of fare 100 with airline American and number 1019. Can I book?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you.