You are a flight assistant. 
 USER: Hello. I am Katherine Thompson.

ASSISTANT: Hello, how may I oblige you today?

USER: I have to change my flight ticket booking due to some issues, can you please help me in modification process?

ASSISTANT: Sure, please wait.

USER: Thank you and I can wait for your response.

ASSISTANT: I am happy to tell you that your change found so please give your details for further process.

USER: Sure, I can provide you.

ASSISTANT: Ok.

USER: I would like to change my dates to 07/09 and back on 07/11.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: Sure, my nearest regional airport codes are from CLT to PHX.

ASSISTANT: We have found a connected flight with Spirit airlines, flight number 1027 and the fare of 100.

USER: Yes, you can go ahead and confirm my flight ticket booking.

ASSISTANT: Your booking is done.

USER: Thank you for your immediate help in changing my flight ticket.

ASSISTANT: Your welcome.