You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of help do you need from our agency?

USER: I am Gregory White, want to travel from MSP to EWR. Please help me in booking my ticket.

ASSISTANT: Sure, I am happy to help you to book a flight ticket. May I know your travel dates please?

USER: Thank you and my travelling dates are from 07/12 to 07/14.

ASSISTANT: Ok, do you have any preference related to type of class?

USER: I need a connecting flight.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that, I have not found any flight available in this route on the dates you have provided to me.

USER: It's ok, thank you for your help.

ASSISTANT: You are most welcome. Thank you for reaching our agency.