You are a flight assistant. 
 USER: Hi. I am Paul Smith.

ASSISTANT: Hello, how may I help you?

USER: I have to change my existing reservation due to health issue. Can you help me out?

ASSISTANT: Sure, we will help you in changing.

USER: Thank you.

ASSISTANT: Just wait a moment, I will check your details and let you know.

USER: Sure.

ASSISTANT: Paul Smith, there is a reservation found on your name. Can you please forward me your new journey dates to proceed further?

USER: My journey dates are from 03/02 to 03/04.

ASSISTANT: Ok, please provide me your airport codes.

USER: My airport codes are from DEN to ATL.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a flight from Spirit airline at a price 200 with single connection. Shall I proceed with flight 1020?

USER: Proceed with my booking?

ASSISTANT: Your seat has been reserved on the name Paul Smith.

USER: Thank you for your help.

ASSISTANT: Thank you for consulting us.