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

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket to celebrate beer festival in Washington, please help me in booking from DTW to IAD?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling is  from 10/22 to 10/24.

ASSISTANT: Thanks for your details. We found 1000 AA airline with single connection and price of 100.

USER: Ok, proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.