You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Donald Thompson, can you help me to book a evening flight from LGA?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are Mar 17 and 19.

ASSISTANT: Do you have any class preference?

USER: No, I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No I did not have any other requirements.

ASSISTANT: Can you help me with your destination airport code?

USER: My destination airport code is SFO, please give me a quick response.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.