You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Could you please be my helping hand in booking a flight ticket from IAD to LAS?

ASSISTANT: Sure, can I know your travel dates?

USER: My trip dates are 09/27 - 09/29.

ASSISTANT: Do you have any specifications?

USER: I need a single connection.

ASSISTANT: Ok, may I know your name?

USER: Emily White here.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight in United Airlines with flight number 1019 having an economy class. Shall I proceed for booking?

USER: Please reserve.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.