You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Thomas.

ASSISTANT: How can I assist you at this moment?

USER: I want to travel from MSP to EWR. Can you help me to book a flight ticket?

ASSISTANT: Sure William Thomas, I will help you with that. Can I have your travel dates please?

USER: i want to travel in the flight on 04/16 and 04/18.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok.

ASSISTANT: Do you have any limits regarding connections?

USER: I want to have a connection of 1.

ASSISTANT: Sorry Thomas, no flight is available to you on your dates with connection 1.

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

ASSISTANT: Thank you for choosing us, have a good day.