You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Michelle Clark. I want to book a flight ticket from MSP to DCA. Could you help me in booking?

ASSISTANT: Ok, please share your travel dates.

USER: My travelling dates are from 02/09 to 02/11.

ASSISTANT: Do you need any specifications?

USER: I need a halt.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

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

ASSISTANT: Thank you for reaching us.