You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am David Lee.

ASSISTANT: How may I guide you today?

USER: I would like to book a flight ticket to attend a robotic workshop, can you help me to book a connecting flight?

ASSISTANT: Sure, can you mention your travel dates?

USER: My travelling dates are 03/15 and 03/17.

ASSISTANT: Can I know your airport codes?

USER: My airport codes are SFO and JFK.

ASSISTANT: At what time do you like to travel?

USER: I would like to depart at afternoon and return at afternoon.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Thank you for waiting and we have found a flight in a business class with 1 connection in Delta airlines and the fare of your flight will be 700. Do you like me to proceed your booking with this flight?

USER:   Yes, please proceed.

ASSISTANT: Your booking is done with flight number 1027. Your depart time is 16:00 PM and arrival time is 17:00 PM.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.