You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am planning to go for a small recreation with my friends to enjoy in Beer festival at Phoenix, AZ - PHX.

ASSISTANT: Ok.

USER: Can you please book a ticket from Philadelphia, PA - PHL?

ASSISTANT: Sure. May I have your starting date of your journey?

USER: My depart date is on 09/23.

ASSISTANT: Ok. May I have your name?

USER: Sure, I am Sarah Perez.

ASSISTANT: Ok. Please share the return day of your travel.

USER: I intend to return on 09/25.

ASSISTANT: We found a flight with a fare of 100. Flight number is 1005. Shall I proceed to book with Hawaiian Airline?

USER: Ok, please proceed for booking.

ASSISTANT: Ok. Your reservation is done.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, Have a nice day.