You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Kimberly Martinez.

ASSISTANT: How can I assist you?

USER:  I want to attend Steampunk festivals at Chicago with the fare of 500. Can you please help me in booking a flight ticket?

ASSISTANT: Please provide your travelling codes.

USER: I need to leave from my nearest airport DCA to reach ORD.

ASSISTANT: Please mention your travelling dates.

USER: I want to travel on 10/05, and need to catch return flight on 10/07.

ASSISTANT: Ticket can be booked with airline AA having connections 1. Flight number is 1013 and price is 200.

USER: Proceed with the booking.

ASSISTANT: Ticket is booked.

USER: Thanks for the help.

ASSISTANT: Thank you.