You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you please book a flight from Philadelphia, PHL?

ASSISTANT: Sure, may I know your travel dates?

USER: 12/11 and 12/13 are travel dates.

ASSISTANT: Please let me know your origin airport code?

USER: I have mentioned it already.

ASSISTANT: Please provide your destination?

USER: Houston, HOU is destination to attend the music live concert.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. The price should not exceed 200.

ASSISTANT:  Thanks for waiting, we are pleased to inform you that we have found a Hawaiian airline, flight number-1005 connections-1 and price limit is 100.

USER: Ok, you can confirm.

ASSISTANT: You reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.