You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am a magician, I have to participate in a contest at Houston. Could you book my ticket from Denver?

ASSISTANT: Sure, may I know your airport codes?

USER: My genesis and terminus airport codes are DEN and HOU.

ASSISTANT: Please mention your travelling dates.

USER: My itinerary dates are Dec 21 and 23.

ASSISTANT: May I know your name?

USER: Ronald Perez here.

ASSISTANT: Do you need any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with one connecting flight and the price is 100 in United Airlines, can I proceed with the reservation?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1004 in economy class.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching our service.