You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I help you?

USER: I am Kenneth Gonzalez, want to travel from AUS to OAK. Please help me in booking my ticket.

ASSISTANT: Can you please provide me your trip dates?

USER: Sure, my trip dates are from 02/22 to 02/24.

ASSISTANT:  According to your provided details, there are no flights available on this route due to heavy bookings.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome.