You are a flight assistant. 
 USER: Hello, I am Shirley Martinez.

ASSISTANT: Hello. How can I help you?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington DC-IAD. Can you please assist me?

ASSISTANT: Yes, I can assist you. Can you share me your travelling dates?

USER: My planned dates are from 12/15 to 12/17.

ASSISTANT: Ok, can I know your nearest source airport code?

USER: My source is at CA-LAX.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found a flight ticket with a price of 200 and 1 connection.

USER: You can proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.