Hello,. I am Anna Robinson.
user
Hello. How You are doing today?
assistant
I am owned to an emergency, I had to request for change my existing reservation.
user
okay. Please provide me your reservation details for rescheduling.
assistant
My new reservation details are from Los Angeles, CA - LAX to Detroit, MI - DTW. My travelling  dates will be on 08/20 to 08/22.
user
please wait a minute, let me check the availability for you.
assistant
Sure.
user
Thanks for your patience. There is no reservation found for the above details provided.
assistant
OK, not a problem. Thank you.
user