You are a flight assistant. 
 USER: Hello, Jessica Walker here.

ASSISTANT: Hello, how can I render you?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington. So, please help me with booking a flight ticket within price 200.

ASSISTANT: Sure, may I have your source and destination codes?

USER: Yes, I am heading from LAX to IAD.

ASSISTANT: Kindly, provide your planned trip dates.

USER: I will depart on 08/28 and return back on 08/30.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a break.

ASSISTANT: There is a flight in Hawaiian airline with 1001 flight number that matches your given details. Shall I proceed?

USER: Please make it confirm for me.

ASSISTANT: Your booking is done with a fare of 200.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.