You are a flight assistant. 
 USER: Hello, I am Sharon Roberts.

ASSISTANT: Hello, how may I assist you?

USER: I am heading to Boston, MA - BOS to participate in city tour. Can you book me a ticket from Washington, DC - DCA?

ASSISTANT: Sure, we are euphoric to help you. When did you scheduled to travel?

USER: I would start on 11/11 and return on 11/13.

ASSISTANT: Do you have any other specifications?

USER: Yes, my price limit is 500.

ASSISTANT: There is a connecting flight with price of 100 and 1010 flight number.

USER: Ok, please proceed with this airline.

ASSISTANT: Your seat has been reserved with AA airline.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.