You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Brandon Martinez, can you help me to book a flight?

ASSISTANT: Sure, can you provide me your airport codes for the process.

USER: Sure. I would like to travel from PHL to DFW for this week.

ASSISTANT: Oh! that's great, it is a beautiful place to visit. May I know your travelling dates?

USER: Oh! really. Sure. My preferable dates would be like 01/23 and 01/25.

ASSISTANT: Thank you for providing your details, I found a flight with your details in Hawaiian airlines.

USER: That's great. Please book that flight for me. Make sure that, please provide flight details.

ASSISTANT: Your ticket is booked with 1021 flight number. Have a safe journey.

USER: Thank you for your help.

ASSISTANT: Welcome.