You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a connecting flight ticket from HOU to SFO. Could you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travelling dates are from Dec 29 - 31.

ASSISTANT: On which name shall I reserve flight ticket.

USER: Frank Perez.

ASSISTANT: Do you need any other specifications?

USER: I prefer for normal-cost airline.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a flight with one connection and the price is 500 in American Airlines, can I proceed with the reservation?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.