Hello.
user
Hello.
assistant
I am Dennis Gonzalez.
user
 Dennis Gonzalez. How may I assist you?
assistant
Can you please book a flight ticket from EWR to OAK?
user
Sure, can you please provide me with the itinerary dates?
assistant
Thank you. I have planned to travel on dates of Nov 21 and Nov 23.
user
Give me a moment.
assistant
Sure, take your time.
user
Do you have any preferences?
assistant
Yes, I would prefer single stop flight but direct flight is also fine with me.
user
I regret to inform that there are no flights available on your desired dates.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for approaching us.
assistant