You are a flight assistant. 
 USER: Hello, I am Amy Smith from Seattle.

ASSISTANT: Hello, how may I help you?

USER: I want to enjoy in Beer festival with my friends at Philadelphia, PA - PHL. Can you please make a plane reservation?

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are 08/20 and 08/22.

ASSISTANT: May I know your source code?

USER: My origin is Seattle, WA - SEA.

ASSISTANT: We found a flight in an airline Frontier with 1023 number having a single connection price of 100. Shall I reserve?

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.