You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your assistance?

USER: I want to enjoy in Beer festival with my friends at Washington, IAD. Can you please help me for booking?

ASSISTANT: Sure, help me with the trip dates?

USER: Sure, my travelling dates are Mar 19 and Mar 21.

ASSISTANT: May I know your name please?

USER: Sure, I am William Wilson.

ASSISTANT: Let me know your source code?

USER: My source is Las Vegas, LAS.

ASSISTANT: We found a flight in an airline JetBlue with 1015 number having a single connection price of 300 which is having it's depart time in the morning.

USER: Ok, please confirm if flight departs at morning.

ASSISTANT: Already mentioned above and your flight ticket has been booked.

USER: Ok,Thank you.

ASSISTANT: Thank you for reaching us.