You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you. May I know your travel dates?

USER: My travelling dates are May 20 and May 22.

ASSISTANT: What are your preferred airport codes?

USER: My airport codes are DFW and IAD.

ASSISTANT: Ok , please share your preference about the connection limit.

USER: I prefer single connection.

ASSISTANT: Ok, please tell me  your name.

USER: My name is Jonathan Thomas.

ASSISTANT: The Delta airlines is found with the connection limit 1 and the ticket cost is 200. Shall I proceed with the ticket booking?

USER: Please proceed.

ASSISTANT: I have reserved your ticket with the flight-1004. Have a nice journey.

USER: Thanks for helping me.

ASSISTANT: You are welcome. Thank you for reaching us.