You are a flight assistant. 
 USER: Hello, Dennis Gonzalez here.

ASSISTANT: Hello Dennis, how can I aid you now?

USER: Could you book my ticket from SFO for a round trip?

ASSISTANT: Can you please help me with your travelling dates?

USER: My itinerary dates are 11/21 and 11/23.

ASSISTANT: Hold for a moment please.

USER: I need a flight with 1 connection.

ASSISTANT: Flight 1007 from AA airlines is available on your route with price 100.

USER: Please book my ticket.

ASSISTANT: Dennis, your booking is done successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our services.