You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to travel from AUS to SFO. Please help me in booking my ticket.

ASSISTANT: When you want to travel?

USER: Sure, my trip dates are from 10/17 to 10/19.

ASSISTANT: Sure, do you have any other requirements?

USER: My depart time will be in the morning and I need a direct flight.

ASSISTANT: Can you please tell me your name?

USER: My name is Ashley Brown.

ASSISTANT: Sorry, there is no flights available in the morning.

USER: It's ok, thank you.

ASSISTANT: Most welcome.