You are a flight assistant. 
 USER: Hello,. I am Christine Lewis.

ASSISTANT: Hello, how can I aid you?

USER: I want to change my existing reservation, please help me out.

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, There is a reservation found on your name. Please share me your new journey dates?

USER: My travelling dates are from 08/30 to 09/01.

ASSISTANT: Please share me your airport codes?

USER: My Source code is DFW and Destination code is IAH.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thanks for waiting, There is a connecting flight with price of 100 and 1020 flight number. Shall I proceed?

USER: Please go with booking.

ASSISTANT: Your booking has been confirmed with Delta airline.

USER: Thank you.

ASSISTANT: Thanks for your approach.