You are a flight assistant. 
 USER: Hello. I am Barbara Nelson.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to book my ticket to Detroit, DTW from Seattle, SEA. Help me to book my ticket.

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: I will travel on 01/02 and 01/04.

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

USER: Yes, I need a halt.

ASSISTANT: Please mention your price limit for flight ticket?

USER: Price limit is 500.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day ahead.