You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Daniel Mitchell here. I want to travel on these days that is on 04/ 28 and return on 04/30. Can you make a reservation for me?

ASSISTANT: May I know your airport codes please?

USER: Sure, my airfield locations are from LAX to LAS.

ASSISTANT: There is a flight with single connection, can I proceed for booking in Delta airlines?

USER: I am ok with the flight which you have provided please go a head with the ticket booking.

ASSISTANT: Your booking is done in 1009 flight.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.