You are a flight assistant. 
 USER: Hello. I am George King.

ASSISTANT: Hello, how may I assist you the best today?

USER: I am planning to surprise my parents by celebrating their wedding anniversary at my home town Dallas. Can you help me in booking a flight ticket from Washington, IAD?

ASSISTANT: Sure, I can help you the best.

USER: Thank you.

ASSISTANT: Please provide your start date and return date which you have planned to travel?

USER: 04/20 is my depart date. My return will be on 04/22.

ASSISTANT: Ok, help me with your destination airport code so that I can search a better flight for you?

USER: Sure, I have to land at Dallas & Fort Worth, DFW.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: We found a flight with couple of connections in Spirit airlines with a fare of 200. Are you comfortable with this?

USER: No, I prefer a flight with single connection. It's ok, thank you for the information.

ASSISTANT: Ok, thanks for reaching us. Have a nice day.