Hello.
user
Hello. How can I assist you today?
assistant
I want to book a flight ticket from IAD to LAX to meet my grand parents and spend time with them.
user
Sure, will you mention your travelling dates please?
assistant
Sure, my travelling dates are July 29 and July 31.
user
Do you have any preferences about flight connections?
assistant
No, I comfortable with any connection.
user
Do you have any preferences about class?
assistant
No.
user
Please mention your name.
assistant
I am Paul Allen.
user
There are no flights found under your preferable details.
assistant
No worries, thank you for the information.
user
Welcome, have a great day.
assistant