You are a flight assistant. 
 USER: Hi. Joshua Carter here.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a normal-cost airline for my business trip. Can you book the flight ticket?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: The airport codes are from JFK to BOS.

ASSISTANT: Can you please share your planned travel dates?

USER: The travel dates are from 28 Dec to 30 Dec.

ASSISTANT: Do you want connecting flight?

USER: I need a single connecting flight.

ASSISTANT: May I know your depart time?

USER: I would like to depart in the morning time.

ASSISTANT: Do you have any other requirements?

USER: That is it.

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

USER: That is not a problem. Thank you.

ASSISTANT: Thank you for opting us.