You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Nelson.

ASSISTANT: How can I aid you Andrew Nelson?

USER: I planned to meet my school friends in HOU, can you book the flight ticket from PHL?

ASSISTANT: Sure, please provide your dates of journey.

USER: I would like to travel from 06/16 to 06/18.

ASSISTANT: Wait a moment please, let me check the flight availability.

USER: Sure.

ASSISTANT: There is a flight 1028 of Delta airlines available for you. Shall I proceed to book?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you and have a safe journey.