You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Anna Robinson is here. I have to participate in music festival with my rock band team at Washington. Can you help me in booking a ticket with price limit 200?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know your journey points?

USER: My airport codes are from ATL to IAD.

ASSISTANT: Ok, please share your journey dates.

USER: My journey dates are from 08/20 to 08/22.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were found based on your good name.

USER: Not an issue. Thank you for your quick response.

ASSISTANT: Thank you for choosing us, have a nice day.