Hello.
user
Hello, how can I aid you for today?
assistant
Myself John Davis. Due to some urgent work, I am going to change my existing reservation. Can you please help me for this?
user
I am here to help you about that John Davis.
assistant
Ok, I will wait for your response.
user
I have found your reservation. Can you please provide your modified dates of journey?
assistant
I am planning my trip on Nov 19, and again I will return back on Nov 21.
user
Can you please provide me the respective airport codes for your journey?
assistant
My airport codes are ORD to DTW?
user
Do you have any other requirements about your journey?
assistant
My return time is evening.
user
Sorry to say this John Davis, there are no flights which travels on your route.
assistant
Not a big deal, anyhow thank you very much for your service.
user
You are welcome, thank you for reaching us.
assistant