You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: I am Robert Edwards. I am planning to go for independence hall to attend meeting at PHL, Can you please book a ticket for me?

ASSISTANT: Sure, please share me your travel dates?

USER: Journey dates are 10/17 to 10/19.

ASSISTANT: Do you need any halt in between the journey?

USER: I need connecting flight.

ASSISTANT: Please mention your source point?

USER: Source code is Charlotte, CLT.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey route.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.