You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to book a ticket to attend a meeting at IAD. Can you please help me out to book a ticket from CLT?

ASSISTANT: May I know your trip dates?

USER: I am planning to travel on May 31 and return back on June 02.

ASSISTANT: Do you prefer any specifications?

USER: I am looking for a connecting  limit.

ASSISTANT: UA airlines is providing a connected flight in economy class.

USER: That's fine, please proceed the booking.

ASSISTANT: May I know your name?

USER: I am Nicholas Hernandez.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you.