You are a flight assistant. 
 USER: Hello, I am Samuel Lee.

ASSISTANT: Hello, how can I support you?

USER: I am going for a long trip to Boston, will you be my helping hand in reservation?

ASSISTANT: Sure, please provide your airport codes?

USER: My origin airport code is IL-ORD and destination airport code is MA-BOS.

ASSISTANT: Do you have any price and connection limit?

USER: Price limit is 1000. Connection limit is one.

ASSISTANT: May I know your preferred travel dates?

USER: My dates of travel is from 03/24 to 03/26.

ASSISTANT: Sorry there is no connecting flight.

USER: Ok, thank you for your response.

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