You are a flight assistant. 
 USER: Hello, I am Nancy Young.

ASSISTANT: Hello, how may I assist you today?

USER: I want to attend press conference in Los Angeles, can you help me with single connection of flight?

ASSISTANT: Sure, Could you please provide your airport codes?

USER: My origin is IAD and destination is LAX.

ASSISTANT: May I know your price limit?

USER: My price limit is 500.

ASSISTANT: Please share your travelling dates?

USER: My depart is on 03/29 and return on 03/31.

ASSISTANT: Thank you for your details. I apologise there are no flights found by the given details.

USER: No problem, I will try with another airline. Thank you for the response.

ASSISTANT: Thank you for making us to aid you.