Hello.
user
Hello.
assistant
I am Gregory Lee.
user
How may I help you?
assistant
I want to travel from BOS to AUS. Can you help me to book a flight ticket?
user
 Certainly, could you please share your departure and arrival day?
assistant
I want to travel in the flight on Feb 16 and Feb 18.
user
May I know your other specifications?
assistant
I want to depart in morning time.
user
 We regret to inform you that there are no flights moving to your region with your planned dates.
assistant
That's ok. Anyways, thank you for your help.
user
Thanks for choosing us.
assistant