You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from EWR to LGA?

ASSISTANT: May I know your travel dates?

USER: I want to fly on Sept 12 and return on Sept 14.

ASSISTANT: May I know your name please to proceed for booking?

USER: Myself Justin Evans.

ASSISTANT: Do you have any connection preferences?

USER: I need a single connection.

ASSISTANT: Do you have any timing concern?

USER: I am comfortable with any timings.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: Sorry, no flights found as per your preferences.

USER: Not an issue.

ASSISTANT: Thank you.

USER: Thank you.