You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am Carol Adams. I have to reach Dallas in the month of April, so I need a flight ticket on 20th April and please book the return ticket in the same month on 22nd.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please share your airport codes?

USER: Sure, my nearest regional airport codes are from SFO to DFW.

ASSISTANT: Do you have any other requirements?

USER: I need a single stop and go in my trip.

ASSISTANT: We found a direct flight and price is 100 of 1006 flight. Shall I proceed for booking?

USER: Yes, you can proceed with booking in direct flight.

ASSISTANT: Your ticket has been confirmed with Delta airlines and economy class.

USER: Thank you for your immediate help in my flight ticket booking.

ASSISTANT: Thank you for choosing us.