You are a flight assistant. 
 USER: Hi, I am Susan Campbell.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to book a flight ticket to PA to take a part in scuba driving, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, can you please share your travel dates?

USER: I need to depart on Sept 14th and my return date will be on Sept 16th.

ASSISTANT: Could you please help me with the airport codes?

USER: My boarding and landing airport codes are IAH and PHL.

ASSISTANT: Do you have any class preference?

USER: I need a business class ticket.

ASSISTANT: Susan Campbell, there is a flight available with price 300 and the connection is 1 with Frontier airline. Would you like me to proceed with the booking?

USER: Yes, you can reserve the ticket.

ASSISTANT: Your booking is confirmed with 1004 flight number.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for reaching us.