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

ASSISTANT: Hello, how may I support you now?

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 help me with booking a connecting flight ticket?

ASSISTANT: Sure, I will help you out. When are you willing to travel?

USER: My travelling dates are from 12/06 to 12/08.

ASSISTANT: Do you have any price limit?

USER: My price limit is 500.

ASSISTANT: Help me with the source code?

USER: My source code is MN -  MSP.

ASSISTANT: Thanks for your details, please be on hold.

USER: OK.

ASSISTANT: Thanks for your time, we have found a direct flight to your destination. Shall I proceed?

USER: No do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for opting us. Have a great day.