You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Please book me a ticket from CLT to SFO to meet my friend.

ASSISTANT: Sure, let me know your planned dates of travel.

USER: My planned dates are from 07/28 to 07/30.

ASSISTANT: Do you prefer a connection within your journey?

USER: I need a connecting flight to reach my destination.

ASSISTANT: May I know your good name please?

USER: I am Patrick Young.

ASSISTANT: Thank you for sharing your details. There are no flights found according to your specifications.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching us.