You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Can you please check for the availability of the flights for the dates Feb 11 and Feb 13 respectively?

ASSISTANT: Sure, please share me your airport codes.

USER: Thank you for taking my request, my airport codes are BOS and EWR.

ASSISTANT: Is there any class preferences for you?

USER: No, I am happy with any class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, please book the ticket under the name Deborah Martin.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No issue, I will go with other service. Anyway thank you for checking.

ASSISTANT: Thank you for communicating with us.