You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Daniel Green.

ASSISTANT: Daniel Green. How can I help you?

USER: I would like to book the direct flight from EWR to LGA. Can you please help me?

ASSISTANT: Sure, may I know the travel dates please?

USER: My travel dates are 11/11 and 11/13.

ASSISTANT: Is there any time concern?

USER: I would like to return in the evening.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Do you prefer any connection limits?

USER: I need a direct flight.

ASSISTANT: Are there any other requirements?

USER: No.

ASSISTANT: Give me a moment.

USER: Take your time.

ASSISTANT: I regret to inform that there are no flights available on your travel dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.