You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend music concert at PHL, can you please help me with booking a flight ticket from CLT?

ASSISTANT: Sure, let me know your travel dates please?

USER: I would like to take off on Nov 27 and return on Nov 29.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you need any other preference?

USER: I don't have any other preference.

ASSISTANT: Can I know your name please?

USER: My name is Helen Martin.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us.