You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: Thank you and my journey dates are from 01/16 to 01/18.

ASSISTANT: May I know your name please to proceed further?

USER: Myself Anna Thompson.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I am looking for business class and also I would like to prefer normal cost airline.

ASSISTANT: Anna Thompson, no flights has been found on your planned travel dates.

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

ASSISTANT: Thank you for reaching us.