You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to attend a seminar at Austin, can you help me to book a flight ticket from PHX to AUS?

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are Sept 21 and Sept 23.

ASSISTANT: Let me know your name.

USER: My name is Carolyn Perez.

ASSISTANT: Do you have any preference?

USER: I would like to prefer connecting flight for this trip.

ASSISTANT: Ticket is found with airline Spirit for price 100 having flight number 1011.

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

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.