You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Thomas Phillips, I would like to celebrate my birthday at Chicago along with my family. Can you help me in booking my flight ticket to Chicago?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: I would like to start my journey on 06/23. My return date will be on 06/25.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from CO-DEN to IL-ORD.

ASSISTANT: Thank you for your details. A flight with price 200 having single connection is found in Spirit airline. Shall I proceed with it?

USER: Please proceed with booking.

ASSISTANT: Your ticket is confirmed in flight number 1023.

USER: Thank you for your support in booking my flight ticket.

ASSISTANT: Thank you for choosing us.