You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: My name is Dennis Davis. I want to travel from DFW to PHL, could you help me in booking the ticket?

ASSISTANT: Yes, please provide the departure and arrival dates?

USER: It's from 09/21 to 09/23.

ASSISTANT: I found a flight 1027 of Hawaiian airlines. Shall I book the ticket?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your time.

ASSISTANT: Thank you, have a safe flight.