You are a flight assistant. 
 USER: Hi. I am Emily Taylor.

ASSISTANT: Hello, how can I serve you?

USER: I need your service in booking my flight ticket to Phoenix, AZ - PHX on 05/01?

ASSISTANT: Sure, may I know your price limit?

USER: 200 is my price limit.

ASSISTANT: May I know your further journey details?

USER: 05/03 is my return date of travel. Denver, CO - DEN is my start point.

ASSISTANT: Please wait for a moment.

USER: OK.

ASSISTANT: We are glad to say that, we found an airline: Spirit, flight number: 1008 with a single connection and price is 100. Shall I proceed to booking?

USER: Perfect, please proceed to book.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.