You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: Timothy Baker here. I looking for a flight from ORD till DFW, can you book the flight ticket?

ASSISTANT: Can you please tell me your trip dates?

USER: My travelling dates are from 09/20 till 09/22.

ASSISTANT: I have found a flight-1009 of Hawaiian airlines, shall I proceed?

USER: Please, proceed it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe journey.