Hello.
user
Hello, how may I assist you today?
assistant
 I want to book a flight ticket from LGA to SEA. Could you help me in booking?
user
Sure, may I know your planned travel dates?
assistant
My travelling dates are Jan,20 and Jan,22.
user
Do you have any specifications on your journey?
assistant
My depart time should be in the afternoon.
user
May I know your name for the booking process?
assistant
Myself Jonathan Clark.
user
Sorry, no flights are available on your specified dates.
assistant
That's ok, thank you for the information.
user
Welcome, thank you for reaching us.
assistant