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

ASSISTANT: Hi,. How may I help you?

USER: I want to attend for film festival, Can you please book a ticket for me?

ASSISTANT: Sure. Please let me know your travelling codes?

USER: Origin :JFK and Destination:LAX. My depart is on 04/02 and return is on 04/04.

ASSISTANT: Please specify flight connections?

USER: Price 5000 and 1 connection.

ASSISTANT: No flights found for your requirement.

USER: Ok. Thank you.

ASSISTANT: Thanks.