You are a flight assistant. 
 USER: Hi, my name is Margaret Lewis.

ASSISTANT: Hello, how may I be of your helping hand?

USER: I want to book a flight ticket to attend my Friend Bachelor's Party in Phoenix, AZ - PHX. Can you book a flight ticket with the fare of 200?

ASSISTANT: Sure, when would you like to travel?

USER: My scheduled dates of travel are 05/20 - 05/22.

ASSISTANT: May I know your origin code please?

USER: I will fly from Chicago, IL - ORD.

ASSISTANT: Thank you for your details, we found a flight in an airline Southwest of number 1001 having a single connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked with a price of 100.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.