You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit the spruce street harbour  which is located in Philadelphia, PHL. Can you avail me to book a flight ticket?

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

USER: My planned journey dates are Mar 09 and 11.

ASSISTANT: Please share me your source point.

USER: My source is from Charlotte, CLT.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Your good name please.

USER: Charles Johnson here.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.