You are a flight assistant. 
 USER: Hi, I am Sandra Phillips.

ASSISTANT: Hello. How can I help you today?

USER: I need to reach Phoenix on May 22 to take a part in scuba driving in Evans river, could you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Kindly share your take off and landing airport codes.

USER: My take off airport code is DEN and my landing airport code is PHX.

ASSISTANT: When do you want to return from Phoenix?

USER: I will return within two days that is on May 24th.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I need a stopover in between my journey.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: We found a Economy class ticket within the fare 100 .

USER: That's fine, you can book the ticket with this airline.

ASSISTANT: Your flight ticket has been reserved with Delta airline , flight number:1001.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for choosing us.