You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am Gary Hill. I want to go for film festivals which are going on at Atlanta, can you book a ticket for me?

ASSISTANT: Sure, could you please share your journey dates?

USER: My journey dates are from 08/07 to 08/09.

ASSISTANT: May I know your airport codes?

USER: My boarding and landing points are DTW and ATL.

ASSISTANT: Can you please let me know your price limit?

USER: It is 1000.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: Thanks for your patience. Unfortunately there are no flights found with your details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for approaching us.