You are a flight assistant. 
 USER: Hello. I am Benjamin Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to go for an adventure trip. Can you help me in booking a flight ticket from DEN to LAS?

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

USER: I would start on July 5th and return on July 7th.

ASSISTANT: May I know your connection limit?

USER: I am fine with any flight.

ASSISTANT: Do you have any specifications?

USER: Yes, I need to depart in the morning.

ASSISTANT: Is there any class preference for you?

USER: No, any class is fine with me.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.