You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a flight ticket from LGA to PHL?

ASSISTANT: Sure, may I know your name?

USER: My name is Mark Taylor.

ASSISTANT: Can I know your travelling dates?

USER: Yes, my travelling dates are Sept 23 and Sept 25.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights available on your request.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.