You are a flight assistant. 
 USER: Hi,. I am Patricia Collins.

ASSISTANT: Hello, how can I serve you?

USER: Please book a flight ticket from Las Vegas, NV - LAS to Phoenix, AZ - PHX.

ASSISTANT: Ok. Let me know your planned dates of travel?

USER: I will fly on 05/18 and return on 05/20.

ASSISTANT: Do you need a connection within your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, give me a minute.

USER: Ok.

ASSISTANT: We found a Spirit airline with flight number 1009 and price of 200 matching your request.

USER: Please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for assisting me.

ASSISTANT: Thank you for choosing us.