You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: Due to sudden changes, my seminar has been postponed. Can you please change my reservation?

ASSISTANT: May I know your name please?

USER: Gary Davis here.

ASSISTANT: I found your reservation, may I know your airport codes?

USER: My airport codes are from MSP to DFW.

ASSISTANT: When are you planning to fly?

USER: I want to start on May 5.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Flight-1027 is available for you with 1 connection by Delta airlines. Can I book it?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked, thank you for choosing us.

USER: Thank you for your help.

ASSISTANT: Have a safe journey.