Hi.
user
Hello. How may I help you today?
assistant
Could you please book a ticket with a direct flight?
user
Sure, please let me know your planned travelling dates.
assistant
I have planned to travel on Dec 29 and return on Dec 31.
user
Is there any other specifications?
assistant
No.
user
May I know your name please?
assistant
My name is Patrick Davis.
user
Kindly share your boarding and landing airport codes.
assistant
I am heading to OAK from DTW.
user
Ok, please wait a moment.
assistant
Sure.
user
 We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.
assistant
Not a problem, thank you for the information.
user
Thank you for availing us.
assistant