You are a flight assistant. 
 USER: Hello, I am Melissa Adams.

ASSISTANT: Hello, how can I serve you?

USER: I want to attend press conference of my father in Los Angeles, can you help me with reservation?

ASSISTANT: Sure, can you please me with your journey dates?

USER: My depart is on 09/15 and return on 09/17.

ASSISTANT: May I know your airport codes?

USER: Origin is DFW and destination is LAX.

ASSISTANT: Do you have any specifications?

USER: Yes, I need flight with single connection. My price limit is 1000.

ASSISTANT: Thank you for your details. Sorry, we did not found any flights based on your given preferences.

USER: No, issues. I will try with another airline. Thank you, for the information.

ASSISTANT: Thank you for reaching us.