You are a flight assistant. 
 USER: Hello. Here Eric Phillips.

ASSISTANT: Hello, how may I assist you for today Eric?

USER: I am working as a professor in the University . I want to give a seminar about electronics there in our university in the month of September. Can you please help me to book a flight ticket from IAD to IAD because it is a round trip?

ASSISTANT: I am glad to help you about your flight ticket booking. Can you please provide your planned dates of trip?

USER: Thank you and I am planning to move on 09/06 and after my work I will catch the return flight on 09/08.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Southwest airlines. Shall I proceed with this flight ticket booking?

USER: Yes, go ahead with ticket booking.

ASSISTANT: I have reserved your flight ticket with the flight 1022.

USER: I appreciate your help in my flight ticket booking, thank you.

ASSISTANT: Most welcome, thank you for using our services. Have a safe journey.

USER: Welcome.