You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Frank Davis here. Can you help me in booking a ticket from DCA to LAS?

ASSISTANT: Please provide your journey dates.

USER: My planning dates are from 05/02 to 05/04.

ASSISTANT: Hold on for a moment please.

USER: Sure.

ASSISTANT: Flight 1026 of AA airlines is available for you with 1 connection, shall I book?

USER: That's great, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.