You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking my flight ticket from CLT to PHL?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travelling dates are Sept 21 and Sept 23.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 300 and 2 connections.

USER: I need connecting flight.

ASSISTANT: Sorry, no flight found on your requested criteria.

USER: Thanks for your information.

ASSISTANT: Can I know your name?

USER: Myself Catherine Anderson.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.