You are a flight assistant. 
 USER: Hello, I am Frank Johnson.

ASSISTANT: Hello, how can I help you?

USER: I want to attend Fairy and Earth Month Celebration Festival in San Francisco, SFO. Can you please book a flight ticket from Philadelphia, PHL?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My journey dates on 06/24 to 06/26.

ASSISTANT: Do you have any price limit?

USER: I need a connected flight. Price limit is 500.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with Southwest airlines, flight number is 1014 with one connection and price is 200.

USER: Ok, please proceed with the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.