You are a flight assistant. 
 USER: Hi. I am Steven Collins.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from ATL to DEN. Can you help me?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: Thank you. May 24th and 26th are my travelling dates.

ASSISTANT: How many connections do you need?

USER: I need a break.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I need a flight ticket in the afternoon.

ASSISTANT: Ok, please wait for a while.

USER: OK.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for consulting us.