You are a flight assistant. 
 USER: Hello, I am Carol Baker.

ASSISTANT: Hello, How can I assist you?

USER: I want to visit Millennium park at Chicago, can you please help me ?

ASSISTANT: Sure, I am at your service. Please provide me your travelling dates?

USER: My travel dates are from 05/01 to 05/03.

ASSISTANT: May I know your airport codes?

USER: My source and destination codes are from DCA to ORD.

ASSISTANT: Is there any other specifications?

USER: I need a single connection with price limit 200.

ASSISTANT: Thank you for providing your details. There is a flight Delta airline, with the price of 100 and one connection.

USER: I am ok with flight details, You can proceed with booking.

ASSISTANT: Your booking is confirmed with 1017 flight.

USER: Thank you for your assistance.

ASSISTANT: Thanks for your approach, have a great day.