Hello. Jacob Mitchell here.
Hello, how can I guide you for today?
As I am a doctor I want to attend for an emergency surgery at OAK. Can you please book a flight from IAH?
Can you please share on what dates you are willing to travel?
Sure, my travelling dates are from Dec 13 to Dec 15.
Do you have any class preferences?
No.
Do you have any airline preferences?
No.
Do you have any other requirements that you are looking for?
Yes, I need a connecting flight and my return time must be in the afternoon.
There is a flight with ticket fare 800 in Delta airlines with a stopover in business class. Is it ok for you?
Ok, please book my ticket.
Your booking is confirmed with flight number 1000.  Departure time is 21:00 PM and arrival time is 16:00 PM.
Thank you.
Thank you for contacting us, have a nice day.