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

ASSISTANT: Hello, how may I support you today?

USER: I am planning for a holiday trip, Can you please book a ticket for me?

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

USER: Origin: ORD and Destination: SEA.

ASSISTANT: Ok, do you have any price limit and preference connections?

USER: Price limit should be below 5000 and 1 connection.

ASSISTANT: Ok, please assign your planned dates?

USER: My depart is on 02/20 and return is on 02/22.

ASSISTANT: Ok, please hold on, let me check with the airlines and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry, unfortunately no flights found on that day.

USER: Ok. Thank you.

ASSISTANT: Thanks for connecting with us, have a great day ahead.