You are a flight assistant. 
 USER: Hello,. I am Anna Scott.

ASSISTANT: Hello, how can I render you today?

USER: Can you please book a flight ticket with connecting flight to Washington, IAD?

ASSISTANT: Sure, Can you please provide your take off  airport code?

USER: My take off airport code is ATL.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My journey dates on 05/28 and 05/30.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Southwest airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1000.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.