You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from PHL to HOU to enjoy music festivals.

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

USER: Sure, my scheduled dates are Apr 28 and Apr 30.

ASSISTANT: Is there any connection limit preference?

USER: I prefer maximum 1 connection.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: I want to fly in a standard airlines.

ASSISTANT: Do you have any specific time preference?

USER: I am comfortable with any time.

ASSISTANT: Could you help me with your name please?

USER: Sure, Edward Moore here.

ASSISTANT: Here I found a connecting flight with Delta Airlines and the airfare is about 100. Shall I proceed in booking with flight 1001?

USER: Yes, you can.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for your assistance.