You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I aid you?

USER: Please book a ticket from Phoenix, AZ-PHX to Philadelphia, PA-PHL.

ASSISTANT: Sure, can I have your trip dates?

USER: Travelling dates are from 05/07 to 05/09.

ASSISTANT: May I know your good name?

USER: I am Charles Miller.

ASSISTANT: We found a flight in an airline Delta of number 1001 having a single connection. Shall I proceed to book?

USER: Please proceed to book a ticket.

ASSISTANT: Your flight ticket is booked.

USER: Please provide ticket price.

ASSISTANT: Thank you for choosing us. Price:200.

USER: Thanks.