You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I need to amend an existing reservation, can you please help me?

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Sure, my name is Jeffrey Campbell here.

ASSISTANT: I found your reservation. Can you please help me with the airport codes?

USER: Sure, my airports codes are MCO and EWR respectively.

ASSISTANT: Could you please share your travel dates?

USER: My planned travelling dates are Dec, 21 and Dec, 23.

ASSISTANT: May I know your connection limit?

USER: My connection limit is one.

ASSISTANT: Do you have any other requirement that you are looking for?

USER: No.Thank you for asking.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with Delta airline. Would you like me to proceed with the booking?

USER: Please proceed to booking.

ASSISTANT: Your reservation has been change with flight number 1013 and the departure time is 4:00 AM, return time is 8:00 AM.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.