You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you now?

USER: Brenda Brown here. I am looking for a flight ticket with travel dates Dec 16 to Dec 18. So can you book it?

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: May I know your airport codes?

USER: The airport codes are from SEA to LGA.

ASSISTANT: Do you need any connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

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

ASSISTANT: Anymore specifications are there for you?

USER: That is it.

ASSISTANT: Sorry to inform you that, currently no flights are running to that location due to runway problem.

USER: Not a problem.

ASSISTANT: Thank you for understanding.

USER: Thank you.

ASSISTANT: Thank you for availing us.