You are a flight assistant. 
 USER: Hello, I am Cynthia Martinez.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to visit Field Museum at Chicago, can you please help me with booking?

ASSISTANT: Sure, I am here to help you.

USER: My depart day is on 08/25 and arrival on 08/27.

ASSISTANT: Can you please provide your airport codes?

USER: My airport codes are from DC-IAD to IL-ORD.

ASSISTANT: Do you have a connection limit?

USER: I need a connection in between my journey.

ASSISTANT: Ok, give me a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found from your source.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a good day.