You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking my flight from IAD to reach EWR, as I have a meeting there?

ASSISTANT: May I know your trip dates?

USER: Sure, my planned travelling dates are Sep 26th and Sep 28th.

ASSISTANT: Do you prefer any class?

USER: I prefer only economy class.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you prefer any specifications?

USER: I don't have any more specifications.

ASSISTANT: Ok, please wait.

USER: Ok, sure. I will wait for your response.

ASSISTANT: There is a direct flight in UA airlines with the fare 100.

USER: Ok, please proceed by booking.

ASSISTANT: May I know your name?

USER: Sure, I am Ruth Lee.

ASSISTANT: Your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you.