You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Wilson here.

ASSISTANT: How may I guide you now?

USER: Can you please help me to book a flight from AUS to SEA?

ASSISTANT: Ok, can I know your travelling dates for this journey?

USER: Sure, I want to travel on May 9 and need to return on May 11.

ASSISTANT: Can you please mention your connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: May I know your depart and return time?

USER: Yes, my depart time must be in morning.

ASSISTANT: Sorry to inform you, there is no single flight available for your journey.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for approaching our services. Have a nice day.