You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking my flight ticket from MSP to IAD?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My planned travel dates are Jan 17-19.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: I am comfortable in economy class.

ASSISTANT: Can I have your name to proceed?

USER: Steven Scott is my name.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.