You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you today?

USER: Can you reserve me a flight ticket from Atlanta, ATL to reach Denver, DEN within fare 500?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: On 12/26, I want to start my journey and intend to return on 12/28.

ASSISTANT: Ok, may I know your price limit? May I know your lay by's?

USER: I am looking for a connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a UA 1025 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Everything's fine, go on with booking.

ASSISTANT: May I know your name?

USER: Sure, William Jones is my name.

ASSISTANT: Your booking has been confirmed on name of William Jones.

USER:  Thanks for your assistance.

ASSISTANT: Thank you for approaching us, have a great day.