You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Michael Miller, please help me to book a ticket from PHL to DEN.

ASSISTANT: Sure, I will help you with booking. May I know your planned journey dates?

USER: My planned travel dates are on 08/02 and 08/04.

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

USER: I need a halt.

ASSISTANT: Thanks for the details, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey details.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for reaching us, we hope see you again.