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

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit my friend's house in Washington, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please provide your dates of travel?

USER: Sure, my journey dates are from 08/20 to 08/22.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: May I know where do want to travel?

USER: I would like to fly from LGA to IAD.

ASSISTANT: Please wait for a while, I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: We found an airline Spirit with flight number 1002 is available from your source. Single connection and fare is 200.

USER: Ok, you can proceed with my booking.

ASSISTANT: Shall I proceed with booking? Ok. Your booking has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.