You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Karen Taylor here. I want to book a flight on the dates from 10/28 to 10/30. My airport codes will be from LGA - DFW.

ASSISTANT: Ok, please let me know your travel airport codes?

USER: Can you help me please?

ASSISTANT: There is a flight available with 1 connection limit and the price range is 300. Can I book it?

USER: Ok, you can book this flight for me.

ASSISTANT: Ok, the flight ticket is been booked.

USER: Thank you for helping me.

ASSISTANT: The flight number is 1015. Thank you for choosing our agency.

USER: Most welcome.