You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Me and my friends are planning to enjoy one day tour at Houston.

ASSISTANT: Ok.

USER: Could you help me with booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My trip dates are 08/16 and 08/18.

ASSISTANT: Please share me your airport codes?

USER: I would like to start my journey from PHL to IAH.

ASSISTANT: May I know your good name please?

USER: I am Patrick King.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1008. Shall I book this ticket?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.