You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER:  I need to change my existing reservation as my exams got postponed, Can you please help me with that?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Laura King here.

ASSISTANT: Your reservation is found. Please provide your trip dates.

USER: My journey dates are 03/18 and 03/20.

ASSISTANT: Could you share your airport codes?

USER: My airport codes are PHL-DEN.

ASSISTANT: Do you have any other specifications?

USER: I need break in my journey.

ASSISTANT: JetBlue Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 8:00 hours and arrives at 22:00 hours, shall I book your ticket in this flight?

USER: Please proceed.

ASSISTANT: Your reservation is changed in flight 1020.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.