You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Gary Martinez, can you help me to book a flight ticket from IAD to JFK?

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

USER: Ok, my travel dates are 02/26 and 02/28.

ASSISTANT: There is a flight which can travel to your region having 2 connections in between your journey having a ticket fare of 200 which is provided by Southwest airlines. Would you like to book this flight for your journey?

USER: Ok, please check for a direct flight. I feel comfortable with a direct flight.

ASSISTANT: Ok, please wait. We regret to inform you that there are no flights found in your route with your planned dates of travelling.

USER: Thank you for assisting me with that. I will search for other source to book.

ASSISTANT: Moat welcome.