You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Can you help me to book a flight ticket on Apr 14 and Apr 16?

ASSISTANT: Sure, can you please share your airport codes?

USER: My airport codes are LGA and PHL.

ASSISTANT: Do you have any connection limit?

USER: Yes, I prefer connecting flight.

ASSISTANT: May I know your airline preference?

USER: I would like to prefer normal cost airline.

ASSISTANT: Do you have any other requirements?

USER: I don't have any requirements.

ASSISTANT: May I know your name to proceed further?

USER: My name is Andrew Robinson.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Delta airlines is having a flight with a ticket fare 900, which departs at 18:00 PM and returns at 1:00 AM, shall I proceed with booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket is confirmed with the flight-1010 in business class.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe trip.