You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit New York, can you please reserve me a flight ticket from IAD to LGA?

ASSISTANT: Sure, may I know your good name please?

USER: My name is Emily Anderson.

ASSISTANT: May I know on which dates your willing to travel?

USER: My preferable journey dates are Oct 12 and Oct 14.

ASSISTANT: Is there any specific class preference for you?

USER: I am comfortable with any class.

ASSISTANT: May I know your airline preference to travel?

USER: I am ok with any airline.

ASSISTANT: Please share your depart time and return time for journey.

USER: I prefer to return in morning flight for this trip.

ASSISTANT: may I know your connection limit please?

USER: I need a connecting flight for this trip.

ASSISTANT: Sorry to inform you that, there is no flight available as per your travelling details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for opting us.