Hello.
user
Hello. How may I aid you?
assistant
Myself Sandra Mitchell, I need to change my existing booking.
user
Sure, I can help you to change the details.
assistant
Thank you.
user
May I know your name to check the ticket status?
assistant
Sandra Mitchell here.
user
Ok, please give me a minute.
assistant
Sure, take your time.
user
I have found your existing reservation. Can you please tell me your airport codes?
assistant
ATL and LGA are the airport codes.
user
Ok, can you please tell me your changed travel dates?
assistant
February 16 and 18 are the travel dates.
user
There is a flight in the UA airlines with the connection limit 1 and the ticket fare is 200. Can I proceed with this flight?
assistant
Great! Please book this ticket.
user
Ok, I have changed the details and  booked a new ticket with the flight number 1000. Have a safe flight.
assistant
Thank you for the assistance.
user
You are most welcome. Thank you for reaching us.
assistant