You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning this weekend to enjoy in Dallas Botanical Garden at Dallas, can you please reserve me a ticket?

ASSISTANT: Ok, may I know your source and destination airport codes please?

USER: My nearest origin airport code is ORD and my nearest destination airport code is DFW.

ASSISTANT: On which dates are you planning your journey?

USER: My preferable journey dates are from 02/04 to 02/06.

ASSISTANT: May I know your good name please?

USER: My name is Donald Baker.

ASSISTANT: Donald, there is a flight available for you from Hawaiian airline with ticket fare of 200, shall I proceed booking?

USER: Perfect, I am comfortable with Hawaiian airlines. Please proceed with the booking.

ASSISTANT: Your ticket has been booked with flight-1017, have a safe journey.

USER: Thank you for your best service, I appreciate your work.

ASSISTANT: Thank you so much.