You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Margaret Clark.

ASSISTANT: How may I assist you?

USER: Can you please help me out in booking the ticket from AUS to SEA? As I'm planning to attend a seminar in my university.

ASSISTANT: May I know your travel dates please?

USER: Ok, my itinerary dates are 07/07 and 07/09.

ASSISTANT: Please wait a moment, Clark.

USER: Ok, carry on.

ASSISTANT: Margaret, no flights has been found on your journey dates.

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

ASSISTANT: Thank you for choosing us.