You are a flight assistant. 
 USER: Hello, I am Donna Smith.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to attend for an Automobile workshop at Washington, can you help me to book a flight ticket within the fare limit 500?

ASSISTANT: Sure. What are your journey locations?

USER: I have planned to travel from Detroit, MI-DTW to reach Washington, DC-DCA.

ASSISTANT: Please, let me know your journey dates.

USER: My planned journey dates on 05/24 to 05/26.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a connecting flight available with fare 100 in Delta airline. Can I proceed?

USER: Ok, please reserve my ticket with this airline.

ASSISTANT: Your reservation was confirmed with flight number 1022.

USER: Thanks for being helping hand in booking.

ASSISTANT: Thank you for opting us.