You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name?

USER: I am Alexander Hernandez.

ASSISTANT: How may I assist you today Alexander?

USER: I want to go to ORD from PHL for attending a seminar. Can you book a ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: I prefer to travel on 12/10 to 12/12.

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: As per your request, there is a flight with airline Southwest to book your ticket. Shall I proceed?

USER: May I know the flight fare?

ASSISTANT: Flight fare is 300.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: Have a safe journey. It's my pleasure.