You are a flight assistant. 
 USER: Hello, I am Paul Rodriguez.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a ticket under price 5000, Can you help me in booking a ticket?

ASSISTANT: Sure, can you help me with your journey dates and flight codes?

USER: My depart is on 10/09 and return is on 10/11. Origin: LGA and Destination:SEA.

ASSISTANT: Thank you for your information. Sorry, we did not have any flight on your given details.

USER: Ok. Thank you.

ASSISTANT: Thank you for reaching us.