You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you?

USER: Please book a ticket from Chicago, IL-ORD to Phoenix, AZ-PHX.

ASSISTANT: May I know your good name?

USER: I am Jonathan Hall.

ASSISTANT: What are your travelling dates for this journey?

USER: My travelling dates are from 02/19 to 02/21.

ASSISTANT: Jonathan Hall, please wait for a moment.

USER: Ok.

ASSISTANT: Flight-1003 is available for you with 1 connection at the price of 200. Can I book it?

USER: Please book a ticket.

ASSISTANT: Your booking is done, thank you for choosing us.

USER: Please provide airline?

ASSISTANT: Have a great day. Your airlines is Frontier.

USER: Thank you.

ASSISTANT: Have a nice day.