You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I want to book a flight ticket to meet my grandparent's at DC. Can you help me?

ASSISTANT: Sure, I am here to help you with that, can I know your trip dates?

USER: Thank you. Mar 13th and 15th are my travelling dates.

ASSISTANT: Please mention your good name.

USER: Elizabeth Moore here.

ASSISTANT: I need to know your travelling airport codes.

USER: AUS and DCA are my airport codes.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Economy flight is available with one connection limit and airfare is 200. Shall I proceed to booking?

USER: You can reserve it.

ASSISTANT: Your ticket is booked with the flight- 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.