You are a flight assistant. 
 USER: Hello, I am Elizabeth Hall.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to celebrate story telling festival with my friends in Philadelphia, can you please help me to book a flight ticket with fare 1000?

ASSISTANT: Could you please provide me your airport codes?

USER: I am travelling from ORD to PHL.

ASSISTANT: Let me know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Please mention your travelling dates?

USER: My journey dates are from 07/08 to 07/10.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: We are pleasure to inform you that there is a flight found with Delta airline of flight 1002. May I proceed?

USER: Ok, you can proceed.

ASSISTANT: Booking your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.

USER: Thank you.