You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a direct flight in my journey. Could you please help me with booking a flight ticket from MSP to IAD?

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

USER: My planned journey dates are Nov 04 and Nov 06.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight in my journey.

ASSISTANT: Are there any more specifications?

USER: I would like to return in the evening time only.

ASSISTANT: May I know your name please?

USER: Catherine Davis here.

ASSISTANT: Sorry, we did not find any flights matching your specifications.

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

ASSISTANT: Thank you for approaching us.

USER: Thank you for your service.