You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Walker.

ASSISTANT: How can I assist you?

USER: Can you please help me with booking a flight ticket from LAS to EWR?

ASSISTANT: May I know your travel dates?

USER: I would like to travel on dates 02/27 and 02/29.

ASSISTANT: Do you have any preferences?

USER:        I need a connecting flight.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.