You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have a international painting competition in Dallas, can you book the ticket?

ASSISTANT: May I know your travelling dates and airport codes please?

USER: My location codes are from OAK to DFW. My preferable dates of travelling is from 09/08 till 09/10.

ASSISTANT: Thank you for providing your details, I found a flight with Hawaiian airlines with 1 connection.

USER: Ok, please proceed the booking on Donna Lopez.

ASSISTANT: Your ticket is booked with 1023 flight number.

USER: Thank you for your service.

ASSISTANT: Welcome.