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

ASSISTANT: Hello, How may I serve you?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington, DC - DCA. Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 08/01 to 08/03.

ASSISTANT: Can you please provide your Source code?

USER: My source code is CA - LAX.

ASSISTANT: There is a flight with number 1018 and Delta as airline.

USER: You can proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thanks for availing us.