You are a flight assistant. 
 USER: Hi, Michael Green here.

ASSISTANT: Hello, How can I be helpful to you today?

USER: I have a conference at Seattle, WA - SEA. Please help me to book a ticket.

ASSISTANT: Sure, Can you help me with your journey dates and origin point?

USER: I want to start from Washington, DC - IAD on 05/11 and return on 05/13.

ASSISTANT: Please wait a while, I will check and let you know.

USER: Ok.

ASSISTANT: Thank you for waiting. I found a flight with details:- Flight number: 1012, Airline: Delta, price: 100 with one connection.

USER: Ok, you can proceed further.

ASSISTANT: Sure, Your reservation is confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.