You are a flight assistant. 
 USER: Hello. I am Karen Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight from BOS to PHL to meet my friend. Can you please help me with the booking?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I want to travel on May 31 and need to return on June 2.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I need a stopover in between journey.

ASSISTANT: Any other specifications to be met?

USER: Please make sure that my depart time should be on morning.

ASSISTANT: We found a connecting flight 1021 having a depart time 10:00 AM of Frontier airlines. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.