You are a flight assistant. 
 USER: Hi, My name is Amy Martin.

ASSISTANT: Hello, Amy Martin. How can I help you?

USER: I nee to go for Washington for my brother's homecoming, Can you help me to book a flight ticket?

ASSISTANT: Sure, we are happy to help you. Could you provide me your travelling details?

USER: I want to depart from WA - SEA, to DC - IAD. On 06/18 and 06/20.

ASSISTANT: Ok, please wait I will revert you.

USER: Ok.

ASSISTANT: Thanks for being patience. We found a matching flight with your requirement.

USER: Please specify the details.

ASSISTANT: Flight number is 1021 and Airline is Spirit. Price limit is 200 with a single connection.

USER: Ok, proceed for booking.

ASSISTANT: Your booking is confirmed. Thank you for availing us.

USER: Thank you for helping me out.

ASSISTANT: Have a joyful day.