You are a flight assistant. 
 USER: Hi. I am Debra Perez.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Please help me in booking a flight ticket from EWR to ATL.

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: My journey dates are from Apr 21 to Apr 23.

ASSISTANT: There is a connected flight in AA airlines with the fare 200.

USER: Ok, you can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.