You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to travel DEN from IAD, can you please help me to book flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are Feb 3 and Feb 5.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your good name?

USER: I am Jessica Jackson.

ASSISTANT: We found an airline: Delta, flight number: 1003 and price is 100 with one connection.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.