You are a flight assistant. 
 USER: Hello, I am Margaret Gonzalez.

ASSISTANT: Hello, Margaret Gonzalez. How can I aid you today?

USER: I would like to attend an international conference about Religious festivals, held at Washington, DC - IAD. Can you help me in booking a flight ticket within the price of 200?

ASSISTANT: Sure, we will aid you. When do you want to travel?

USER: I want to fly on 08/25 and intend to return on 08/27.

ASSISTANT: Ok, May I know your boarding details?

USER: I would like to board at Seattle, WA - SEA.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: It's ok.

ASSISTANT: Sorry, no flights were available based on your data.

USER: That's alright, not a problem. Thank you for your information.

ASSISTANT: Thanks for choosing us.