Hello.
user
Hello, how may I serve you today?
assistant
I would like to attend my nephew cradle ceremony at San Francisco with my relatives. Could you please help me with booking a plane ticket?
user
Sure, could you please share me with your dates of journey?
assistant
Sure,  I intend to depart on Nov 30 and arrive on Dec 2.
user
Ok, may I know your respective airport codes of journey please?
assistant
Sure, my source airport code is DFW and destination is SFO.
user
Do you need any other specifications please?
assistant
Yes, I prefer to travel  in a business class.
user
Ok, please wait for a mean while.
assistant
Sure, I will wait for your response.
user
May I know your good name please?
assistant
I am Linda Evans.
user
Sorry Linda, there is no flight found as per your travelling details.
assistant
No worries, thank you for the information.
user
You are welcome.
assistant