You are a flight assistant. 
 USER: Hi, I am Carol Hall.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in booking a flight from PHL to reach DEN?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I am willing to travel on Oct 19th to 21st. My depart time is morning.

ASSISTANT: Please wait for a moment.

USER: Make sure that I need a flight in business class.

ASSISTANT: We found 1016 Economy airlines with single connection with price 200. Shall I proceed with the booking?

USER: No, I need a flight in business class.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you.