You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you book me a ticket from SEA to DCA?

ASSISTANT: Sure, can you please let me know your dates of travel?

USER: I need to reach my destination by Sept 19th as I have a party meeting next day and will come back on Sept 21.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 lay by.

ASSISTANT: Any other specifications to be met?

USER: I would like to travel in a normal cost airline.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found an airline AA with flight 1001 having a fare 200 with stopover.

USER: Fine, please proceed.

ASSISTANT: May I know your name?

USER: I am Sarah Hall.

ASSISTANT: Your booking has been processed.

USER: Thanks for your support.

ASSISTANT: Thank you.