You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Melissa Gonzalez want to meet my sister at AZ-PHX. Can you book a ticket on 11/04?

ASSISTANT: Sure, it's my pleasure to help you. Please provide you origin airport code.

USER: I will depart from TX-AUS.

ASSISTANT: May I know when will you return?

USER: I will return on 11/06.

ASSISTANT: Do you have any specific preference during your journey?

USER: I need a connecting flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We have found a connecting flight from Spirit airline 1020 and the price is 100. It is an economy class seat. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.