Hello.
user
Hello. How may I help you at this moment?
assistant
Can you please book a flight ticket from OAK to DFW?
user
Ok, I will help you that. Can I know your planned trip dates?
assistant
Thank you. I have planned my travel dates as July 28 and July 30.
user
Ok, do you have any other requirements?
assistant
I would like to depart in evening time so please make sure that.
user
May I know your name?
assistant
Sure, myself David Rodriguez.
user
Ok, wait for a minute.
assistant
I am looking for direct flight so please check with that.
user
Sorry to say that, there are no flight's available based on your travelling dates.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user