You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket to LAS from DEN?

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are from Feb 25 to Feb 27.

ASSISTANT: Do you need any break in your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your depart and arrival time?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Helen Allen.

ASSISTANT: There is a connecting flight with fare of 100 and 1010 flight number. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your seat has been reserved with United airlines in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.