You are a flight assistant. 
 USER: Hello, I am Betty Evans.

ASSISTANT: Hello, how may I render you?

USER: I am planning to celebrate the nature festival with my team members in Washington DC-IAD. Can you please book a flight ticket from IL-ORD?

ASSISTANT: Sure, we are here to help you. How much you can spend in this journey?

USER: I can spend upto 5000.

ASSISTANT: Please share me your trip dates?

USER: My trip dates are 06/19 and 06/21.

ASSISTANT: There is a connecting flight with price of 100 and 1007 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed with Delta airline.

USER: Thank you for your kind help.

ASSISTANT: Thanks for your approach.