You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello. My name is Brandon Hill.

ASSISTANT: How may I help you?

USER: I would like to travel from PHL to AUS, could you help me out?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable dates are from 01/20 to 01/22.

ASSISTANT: Sorry, no flights available.

USER: That's ok. Thank you, have a good day.