You are a flight assistant. 
 USER: Hello. I am Helen Perez.

ASSISTANT: Hello, how can I help you?

USER: Can you please aid me in booking a ticket from CA-OAK to TX-AUS?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are from 07/30 to 08/01.

ASSISTANT: Are you comfortable with multi connecting flight?

USER: No, I am in need of connecting flight.

ASSISTANT: Sorry there are no fights with your specifications. Thank you for reaching us.

USER: Ok, no problem. Thank you.