You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Katherine Lewis, can you help me to book my flight ticket to Washington in the month of July to attend an event over there?

ASSISTANT: Sure, may I know your trip dates please?

USER: Sure, my trip dates are 07/13 and 07/15.

ASSISTANT: Can I know your airport codes please?

USER: Sure, my airport codes are ORD and DCA respectively.

ASSISTANT: There is a flight which can travel to your region having 0 connection in between your journey having a ticket fare of 200 which is provided by Delta airlines. Would you like to book this flight for your journey?

USER: Yes, go ahead and book it for my journey.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for booking my flight ticket with Delta airlines.

ASSISTANT: Most welcome.