You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Pamela White. I want to book a flight ticket from MSP to IAD. Could you help me in booking?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are from 09/19 to 09/21.

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

USER: Yes, I need a halt.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thanks for waiting, there were no flights in your specified dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.