You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help are you seeking from us?

USER: Can you help me in booking my flight ticket from LGA to LAX?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: My trip dates will be Dec 27th to Dec 29th.

ASSISTANT: Do you have any requirements to be met?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name?

USER: I am Jennifer Lee.

ASSISTANT: Thank you for providing your details, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your preferable travel dates.

USER: Its ok, thank you.

ASSISTANT: Thank you for contacting us.