You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please help  me in booking my flight ticket from PHX to AUS?

ASSISTANT: May I know your name please?

USER: Myself Mark Davis.

ASSISTANT: Please let me know your preferred journey dates.

USER: My preferable dates are 11/26 and 11/28/.

ASSISTANT: Mark, please give me a minute.

USER: Ok.

ASSISTANT: I found a flight in Delta airlines with price 100. Can I book the ticket for you?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed and the flight number is 1007.

USER: Thank you.

ASSISTANT: Thank you for contacting us.