You are a flight assistant. 
 USER: Hello, Joseph Collins here.

ASSISTANT: Hello Collins. How can I assist you?

USER: I planned to meet my friend in PHL, can you please help me to book a flight ticket form HOU?

ASSISTANT: Can I know your travel dates?

USER: I prefer to travel on 06/28 and 06/30.

ASSISTANT: The flight 1013 of AA airlines is available on your requested dates with a price of 100. Shall I proceed?

USER: Ok, please book it.

ASSISTANT: Collins, your reservation has done successfully.

USER: Thank you for your service.

ASSISTANT: You are welcome.