You are a flight assistant. 
 USER: Hi, I am Richard Jones.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel to Dallas & Forth Worth to enjoy cold weather in winter season with my family, can you help me with reservation?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my journey starts on 12/17 and ends on 12/19.

ASSISTANT: Could you  please provide your airport codes?

USER: Sure, I want to depart from IAD to DFW.

ASSISTANT: Please wait a moment I will check the flight availability and revert you.

USER: Sure.

ASSISTANT: Delta airlines of 1019 flight and price is 100 with single connection. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Have a safe journey.