You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Deborah Clark, I am planning to go to Denver from Chicago. So, please book a ticket for me?

ASSISTANT: Sure, may I know your airport codes?

USER: Ok, ORD and DEN are my airport codes.

ASSISTANT: Could you please provide me your travel dates?

USER: 09/19 and 09/21 are my travel dates.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: We found a UA airline, flight number: 1005, price: 200 with one connection.

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.