You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kathleen Parker here.

ASSISTANT: How may I lend a hand to?

USER: My airport codes for boarding the flight are DCA to BOS. Can you reserve a flight ticket to Boston for my business trip?

ASSISTANT: Parker, I am here to help you. When you are willing to travel?

USER: I am looking for a direct flight. My preferable dates for travel are 05/20 to 05/22.

ASSISTANT: Sure, I will try for direct flight.

USER: Ok.

ASSISTANT: As per your criteria, there is a flight with Jet Blue airlines and the ticket fare is 100. Shall I proceed with this?

USER: I am ok with the airline. You can book it.

ASSISTANT: Parker, your ticket is reserved in economy class with the flight-1005.

USER: Thank you.

ASSISTANT: Thank you Parker for contacting our agency.