You are a flight assistant. 
 USER: Hello, I am Amy Thomas.

ASSISTANT: Hello,. How may I aid you?

USER: I want to change an existing reservation. Can you please help me with this?

ASSISTANT: Sure,  Can you please wait for a while so that I will check with the present status and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a reservation with your name. Please provide your new reservation details for further booking process.

USER: Sure, my origin is from EWR  and destination to ORD. My travelling dates are from 08/17 to 08/19. My price limit is on 1000 with single connection.

ASSISTANT: Thank you for the information we found a flight matching your details with number 1008 and Frontier as airline. Shall I go with booking?

USER: You may proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your best service.

ASSISTANT: Thank you for choosing our service.