You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking my flight ticket from LGA to EWR?

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned travel dates are Mar 31 to April 02.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Are there any other preferences?

USER: I am looking to fly in big branded airlines.

ASSISTANT: May I know your name?

USER: Myself Kathleen Roberts.

ASSISTANT: Sorry Kathleen, There are no flights found with your data.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you.