You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket to attend a business meeting in Philadelphia, could you please help me in booking a flight ticket from Chicago?

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: I want to fly on 11/19 and return on 11/21.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My airport codes are IL - ORD, PA - PHL.

ASSISTANT: May I know your name?

USER: I am Frank Jackson.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT:  Thanks for waiting, we are pleased to inform you that we have found a Hawaiian airline, flight number-1009 connections-1 and price limit is 400.

USER: You can proceed to booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.