You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: As I am an actor, I want to attend Film festival at Austin, AUS. Can you please book a ticket from DTW?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates are Nov 10 and Nov 12.

ASSISTANT: Please share me your name.

USER: I am Mark Garcia.

ASSISTANT: Do you have any specifications?

USER: I prefer normal-cost airline.

ASSISTANT: Sorry, there is no flight available at this moment.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank so much.