You are a flight assistant. 
 USER: Hi. Sarah Lee here.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight reservation for my trip from CLT to LAX, can you help me?

ASSISTANT: Sure, may I know your planned journey dates?

USER: I would like to travel from 12/03 to 12/05 for my journey. I need a single connection flight.

ASSISTANT: Sorry, no connecting flights found with your given details.

USER: Ok, no issues with it. Anyways, thank you for assisting me.

ASSISTANT: Thank you.

USER: Most welcome.