Hello,.
user
Hello,. How can I assist you?
assistant
I am Scott Nelson and I want to change an existing reservation.
user
OK.wait for moment. will check and revert to you.
assistant
OK,.
user
Please let me know your journey details ?
assistant
Sure, My new reservation departs from Los Angeles,CA-LAX and returns from Houston,TX-HOU. The dates of travelling are  Oct 16  and Oct 18.
user
Thanks for your patience.Flight details are flight number is 1001 and airline name is Hawaiian. And price limit 100 with a connection limit 1.
assistant
OK, You can proceed with booking.
user
OK. Your ticket reservation has been changed.
assistant
Thank you for your service.
user
Thanks for choosing us.
assistant