You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from IAD to JFK. Can you please help me?

ASSISTANT: Sure, I am here to help you. May I know your planned trip dates?

USER: My travel dates are from 10/26 to 10/28.

ASSISTANT: Do you have any connection limit preference?

USER: No.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any specific time preference?

USER: Yes, I want my return time ticket in the evening.

ASSISTANT: Do you have any airline preference?

USER: No, thank you.

ASSISTANT: Could you help me with your name please?

USER: Myself Brenda Green.

ASSISTANT: Here I found a connecting flight with Southwest Airlines and the airfare is about 300. Shall I proceed in booking with flight 1012?

USER: Please proceed.

ASSISTANT: For a economy class your ticket is reserved.

USER: Thank you so much.

ASSISTANT: Thank you for reaching our agency.