You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: This is Sarah Robinson, could you help me out to book a flight ticket?

ASSISTANT: Yes, of course. Can you provide me the details of your flight?

USER: Yes, I would like to travel from CO-DEN to IL-ORD.

ASSISTANT: Can I know the dates of travel?

USER: My dates are 12/12 and 12/14.

ASSISTANT: Do you have any price limit?

USER: Yes, my price should not exceed 1000 and 1 connection.

ASSISTANT: The flight 1008 of Frontier airlines is a match with your requirements. Would you like me to book the ticket?

USER: OK, proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your quick response.

ASSISTANT: Thank you Sarah, have a great flight.