You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in making an airline reservation from EWR to DCA?

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are May 20th and May 22nd.

ASSISTANT: May I know your name for the booking process?

USER: Mary Miller.

ASSISTANT: Do you have any preferences for this trip?

USER: I am looking for a single connection.

ASSISTANT: We found a flight in an airline United with 1027 number having a single connection in an economy class. Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.