You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I need to travel from JFK to EWR, can you reserve me a ticket?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: My trip dates are May 10 to 12.

ASSISTANT: May I know your name check with the reservation availability.

USER: I am Helen Martinez.

ASSISTANT: Do you require any connecting flight?

USER: I need a connecting flight.

ASSISTANT: Any other specifications to be met?

USER: Please ensure that my return time must be in morning.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are running on your route due to bad weather forecast.

USER: Ok, no issues. thank you for the information.

ASSISTANT: Thank you for reaching our service.