You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking from DEN to ATL?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are from Jan 9 to Jan 11.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: There is a flight with single connection in United airlines, can I proceed for booking in 1018 flight?

USER: Ok, proceed.

ASSISTANT: On which name can I proceed for booking?

USER: My name is Melissa Martinez.

ASSISTANT: Your booking is done in economy  class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.