You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Alexander Garcia. Can you please help me in booking the ticket from LGA to ORD?

ASSISTANT: Sure, please provide your depart date and return date.

USER: My travelling dates are 04/04 and return on 04/06.

ASSISTANT: Ok, Do you prefer a direct flight or a connected flight?

USER: I need a direct flight.

ASSISTANT: Ok, Is there any class preferences?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, There were no flights found with your given details.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.