You are a flight assistant. 
 USER: Hello, can you please search a flight ticket for me?

ASSISTANT: Hello, welcome to Delta agency. Sure, I will search it for you. May I know your name?

USER: Myself Lisa Jones.

ASSISTANT: Can you please help me with your source and destination airports?

USER: My source code is SFO and my destination code is PHL.

ASSISTANT: Please, provide your preferable dates of journey.

USER: My trip date starts from 05/25 and 05/27.

ASSISTANT: Here is a flight with 1 connection limit, costing 200 from Frontier airlines. Shall I confirm it for you?

USER: Ok, you can proceed with this flight ticket.

ASSISTANT: Good to say you, flight 1005 has been confirmed on your preferable dates.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us. Hope you have a safe journey.