You are a flight assistant. 
 USER: Hello, I am Jeffrey Lopez.

ASSISTANT: Hello, what can I do for you today?

USER: I want to change my existing reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure. I understand your request, we will try to help you. Please wait for couple of minutes, I will go through the reservation list and get back to you.

USER: Sure.

ASSISTANT: We have gone through the reservation list, there is a reservation found on your name. Would you like me to change the reservation?

USER: Sure.

ASSISTANT: Can you please share your journey points?

USER: My journey points are EWR to JFK.

ASSISTANT: May I know on which dates would you like to depart and arrive?

USER: The trip dates are 06/22 to 06/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Spirit airline of flight number 1002 with single connection and fare is 100 available on your route.

USER: Ok, book the ticket.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.