You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please tell me how can I assist you?

USER: I want to meet my parents on the occasion of my birthday.

ASSISTANT: Ok, may I know your trip codes?

USER: My airport codes are from DCA to ORD.

ASSISTANT: May I know your travel dates?

USER: And I have to start on 08/03. My return date is on 08/05.

ASSISTANT: May I know your name?

USER: I am Thomas Campbell.

ASSISTANT: I found a flight with price 100 and 1026 as flight number labelled with Spirit airline. May I proceed?

USER: Ok. Proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.