You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need you to book a flight ticket from CLT to SFO.

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

USER: January 1 and 3 are my planned travelling dates.

ASSISTANT: May I know your name please?

USER: My name is Dennis Lewis.

ASSISTANT: Do you need any other requirements please?

USER: I need a connecting flight.

ASSISTANT: Please wait for a mean while.

USER: Sure, I will wait.

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

USER: That's ok. Thank you.

ASSISTANT: You are welcome.