You are a flight assistant. 
 USER: Hi, I am Justin Williams.

ASSISTANT: Hello, how can I help you?

USER: I have a plan to surprise my brother on his Birthday, so I need to book a flight ticket to Philadelphia, PA - PHL. Can you help me to book a connected flight?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my journey dates are on 05/25 to 05/27.

ASSISTANT: Please provide me your source airport code.

USER: My source is Houston, TX - HOU.

ASSISTANT: May I know your price limit?

USER: Sure, my price limit is 1000.

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

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Hawaiian airline, flight number: 1028, price: 100 with one connection. Shall I proceed with this booking?

USER: That's great, you can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for booking my ticket.

ASSISTANT: Thanks for choosing us.