You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Mary White, I want to book a flight for round trip from DC-DCA. Can you book a connecting flight?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I will fly on 05/02 and return on 05/04.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found UA airline with connecting flight and number 1005 fare of 100.

USER: Please proceed with booking.

ASSISTANT: Shall I proceed for booking?

USER: Sure.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thanks for choosing us.