You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Donald Baker here, I want to reserve my ticket from AUS to DEN, can you please help me?

ASSISTANT: Ok, may I know your travelling dates please?

USER: Sure, my dates of journey is from 03/27 to 03/29. I want a direct flight to travel.

ASSISTANT: Donald Baker, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry, no flights available for you.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.

ASSISTANT: Have a nice day.