Hello.
user
Hello, how may I render you today?
assistant
I want to book a flight ticket from DCA to SFO, can you please help me?
user
Sure, could you please share your journey dates?
assistant
I planned my trip on the dates Feb 9 and Feb 11.
user
May I know your good name?
assistant
Myself Gregory Walker.
user
Do you have any preferences?
assistant
I am looking for a connecting flight and make sure to check with the evening flight at the time of depart.
user
Sorry, there are no flights available as per your requirements.
assistant
 No issue, anyway thank you for checking.
user
Thank you for opting us.
assistant