You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Betty Green.

ASSISTANT: How may I assist you today?

USER: I would like to book a ticket from ATL to PHX to attend seminar,  can you help me in booking?

ASSISTANT: Sure, I am glad to help you in booking a flight. Could you please share your journey dates?

USER: I am departing on 04/29 and return on 05/01.

ASSISTANT: Thanks for waiting, there are no flights available on your preferable trip dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.