You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Jonathan Scott. I want to change my existing reservation due to sudden change in my trip.Can you help me with this change existing?

ASSISTANT: Sure, I will help you in changing your recent reservation.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your name in the reservation list and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting. We found a reservation on your name, please help me with your new journey details.

USER: Ok, IAH and MCO are my nearest airport codes.

ASSISTANT: Ok, do you need any flag stop in between the journey?

USER: I need a connecting flight.

ASSISTANT: Can you please forward your journey dates?

USER: 02/11 and 02/13 are my travelling dates.

ASSISTANT: Ok, please hold on.

USER: Ok.

ASSISTANT: Thanks for your time, there is a Delta airlines with a fare of 200 and the flight number is 1004. Shall I proceed?

USER: You can reserve it for me.

ASSISTANT: Your booking is done with a halt in between the journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.