You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you today?

USER: I want to book a flight ticket from LAS to attend a seminar at MSP, can you help me with booking please?

ASSISTANT: Sure, when do you want to start and return on?

USER: I want to start on Aug 23 and return on Aug 25.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name? Thank you for your details, there are no flights found with the given details.

USER: It's ok, my name is Frank Hill.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the response.