You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I guide you for today?

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

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My planned travel dates are Aug 30 to Sept 01.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I prefer to fly in connected flight.

ASSISTANT: Do you have any class preferences?

USER: I do not any preferences.

ASSISTANT: Can you please provide your name to proceed further?

USER: Myself, Jessica Lewis.

ASSISTANT: Sorry, there are no flights available at your request.

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

ASSISTANT: Thank you for contacting us, have a nice day.