You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Debra Clark. Can you please check whether there are any flights available from DCA to ATL?

ASSISTANT: Sure, please share your travel dates.

USER: Ok, my travelling dates will be 01/06 and 01/08.

ASSISTANT: The flight 1000 of Spirit airlines is available on your requested dates. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.