You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please check for the flights from PHL to IAH?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: My journey dates are from Sept 27 to Sept 29.

ASSISTANT: May I know your name please?

USER: I am Donna Walker.

ASSISTANT: Do you need a connecting flight?

USER: I prefer a connecting flight,.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: I found an economy class in United Airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Book it.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you.

ASSISTANT: Thank you for choosing us.

USER: Welcome.