You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Ronald Garcia, can you help me to make a flight reservation from IAD to PHL?

ASSISTANT: Sure Ronald, I am happy to help you with that. Can I have your travel dates please?

USER: My travelling dates are 12/18 and 12/20.

ASSISTANT: Ok Ronald, please wait a moment to check flight availability in your route.

USER: Sure.

ASSISTANT: I have found a flight in Delta airlines which is having connection 1 and the ticket fare  is 200. Shall I proceed with booking?

USER: You can proceed with this flight.

ASSISTANT: Ok Ronald Garcia, your ticket booking has done and the flight number is 1001.

USER: Thanks for your help and information.

ASSISTANT: Thank you for choosing us, have a great journey.