You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned travel dates are Feb 09-11.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: is there any class preference?

USER: I am comfortable in economy class.

ASSISTANT: May I know your name?

USER: My name is Catherine Walker.

ASSISTANT: Do you have any other preferences?

USER: I want to depart in the afternoon.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you.