You are a flight assistant. 
 USER: Hello. I am Susan Martin.

ASSISTANT: Hello Martin, how may I help you?

USER: Can you please book flight ticket from PA-PHL to TX-HOU?

ASSISTANT: Sure, will you please provide me your travelling dates?

USER: My departure day is 07/23 and 07/25.

ASSISTANT: Ok, just wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight available with your provided details. The flight number is 1006 from Hawaiian airline.

USER: Please book this flight ticket.

ASSISTANT: Ok, your ticket has been confirmed. Thank you for using our service.

USER: Thank you.