You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Carolyn Rodriguez here. I want a help from you for ticket booking. Can you help me?

ASSISTANT: Yes, please provide me your source and destination airport codes.

USER: My source airport code is DTW and destination airport code is PHX.

ASSISTANT: May I know your willing dates for travel?

USER: My travel dates are from 05/14 to 05/16.

ASSISTANT: Fine, please hold on.

USER: Sure.

ASSISTANT: Flight-1015 is from Spirit airline is ready to serve you on that route, shall I book the ticket?

USER: Please go ahead.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.