You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Carolyn Phillips. I am looking for a connecting flight, could you please help me with booking a flight ticket with my requirement?

ASSISTANT: Sure, can you please share me with your dates of journey?

USER: I would like to depart on Sept 10th and return on Sept 12th.

ASSISTANT: Ok, may I know your airports codes please?

USER: I would like to travel from LGA to DFW.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: You are welcome.