You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am looking for a flight from MSP to EWR, can you help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my planned travel are Feb 10 and Feb 12.

ASSISTANT: Do you have any limits on number of connections?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: I would like to start my journey for the evening flight.

ASSISTANT: May I know your name for the documentation process?

USER: Sure, my name is Donna Carter.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: That's ok, no problem. Anyway thank you for checking.

ASSISTANT: Welcome, thank you for reaching us.