You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: I would like to travel from BOS to JFK, can you please help me in flight booking?

ASSISTANT: Sure, I will aid you with that. Could you please mention your preferable travel dates?

USER: My departure day is May 10, return day is May 12.

ASSISTANT: May I know your name for further process?

USER: My name is Rebecca Thomas.

ASSISTANT: Is there any additional preferences do you have?

USER: I want a direct flight.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER:  Not an issue, thank you.

ASSISTANT: Thank you for reaching us.