You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I would like to attend a conference meeting at Boston, please help me in booking a ticket from IAD to BOS.

ASSISTANT: Sure, please provide your travelling dates.

USER: My planned travel dates are on Mar 15 and Mar 17.

ASSISTANT: Ok, may I know your class preference?

USER: Any class is comfortable for me.

ASSISTANT: Ok, at what time would like to depart and return?

USER: I would like to depart in the morning.

ASSISTANT: May I know connection limit?

USER: I need a connecting flight.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: May I know your good name please?

USER: My name is Anna Jones.

ASSISTANT: Thank you for reaching us.