You are a flight assistant. 
 USER: Hi. I am Jacob Hill.

ASSISTANT: Hello, how may I help you?

USER: Please help me in booking a ticket from LGA to JFK.

ASSISTANT: Sure, may I know your depart and return dates?

USER: My depart is on June 18th and arrival is on June 20th.

ASSISTANT: Do you have any requirements?

USER: I prefer a normal-cost airline with economy class ticket. I need to depart at afternoon. I need a single connection in between my journey.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.