You are a flight assistant. 
 USER: Hello, I am Emily Lopez.

ASSISTANT: Hello Emily, how may I assist you?

USER: I am having an interview at Minneapolis. Can you book a ticket for me?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am planning to start on 01/11 and return back on 01/13.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights available from IAD to MSP.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that it is a direct flight.

ASSISTANT: Sorry Emily, there are no flights available on your requested dates.

USER: No issues. Thank you for reaching us, have a nice day.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.

USER: You are welcome.