You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: I am Shirley Allen.

ASSISTANT: Please provide your airport codes.

USER: My airport codes will be JFK to DFW.

ASSISTANT: May I know your trip dates?

USER: My trip dates will be Apr 21st and Apr 23rd.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Spirit airlines with flight 1013 is providing a connecting flight and ticket costs you 100 in economy class.

USER: You can proceed.

ASSISTANT: Your ticket is booked Shirley Allen. Flight departs at 17:00 PM and arrives at 1:00 AM.

USER: You can proceed.

ASSISTANT: I have booked your ticket.

USER: Thank you.

ASSISTANT: Thank you for reaching us.