You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Helen Thomas. I am planning to visit Los Angels for attending a science exhibition, can you help me finding a flight?

ASSISTANT: Thomas, can you please tell me your origin and destination airport codes?

USER: My origin and destination codes are ATL to LAX.

ASSISTANT: Sure, can you please tell me your travel dates?

USER: My travel date are on 01/03 and I will be back on 01/05.

ASSISTANT: Thank you, please wait for a moment.

USER: sure.

ASSISTANT: I found a flight in Southwest airlines and the ticket costs you 100 only. Shall I book the ticket?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed successfully and your flight number is 1006.

USER: Thanks for choosing us.

ASSISTANT: Thank you for contacting us and happy journey.