You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please book me a flight ticket from EWR to JFK to meet my family.

ASSISTANT: May I know your travelling dates?

USER: I have planned to travel on May 08th and return on May 10th.

ASSISTANT: Is there any connection limit?

USER: I prefer connecting flight.

ASSISTANT: May I know your good name?

USER: Jeffrey Jackson.

ASSISTANT: Do you have any other requirements?

USER: I prefer normal cost airline.

ASSISTANT: Sorry, there is no flight found with your required dates to travel.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.