You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me to book a flight from LAS to MSP?

ASSISTANT: Sure, could I have your travel dates, please?

USER: Sure, I want to depart on July 30 and need to return on Aug 1.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your good name to proceed further?

USER: Myself Catherine Thomas.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for reaching us.