You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: I am Margaret Green.

ASSISTANT: How may I assist you Green?

USER: I just want to book a ticket from NY-LGA to CA-OAK. Can you please help me out?

ASSISTANT: Sure. Please give me details of your travel dates.

USER: My travelling dates are from 06/27 to 06/29. Can you check the connection limit?

ASSISTANT: Sorry Green, there are no flights available based on your details.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us. Have a nice day.