You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to book a flight ticket from LGA to DEN?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: I planned my trip on the dates Jan 30 and Feb 1.

ASSISTANT: May I know your name further process?

USER: Myself Margaret Lopez.

ASSISTANT: Do you have any other specifications?

USER: I am looking for a connecting flight and make sure to check with business class flight.

ASSISTANT: Ok, wait for some time i will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thanks for approaching us.