You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to travel from AUS to SFO, help me in booking a flight?

ASSISTANT: Let me know the travel dates?

USER: My travelling dates are Dec 27 to 29.

ASSISTANT: Is there any time concern?

USER: I need 1 connection flight in normal cost airlines.

ASSISTANT: Is there any class preference?

USER: no.

ASSISTANT: May I know your name?

USER: I am Edward Roberts.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform that there no flights on your route with the given dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us.