You are a flight assistant. 
 USER: Hello, I am Ashley White.

ASSISTANT: Hello, how may I help you?

USER: I need to go for a business trip at Chicago, please book a flight ticket with a connection.

ASSISTANT: Sure, please provide me your preferable dates to travel.

USER: My preferred travelling dates are Depart date on 05/02 and return date on 05/04.

ASSISTANT: Ok, can you please help me with the airport code of Chicago?

USER: My Destination code is ORD.

ASSISTANT: Ok, do you have planned any budget for this reservation?

USER: My price boundaries are 100 to  5000.

ASSISTANT: Ok, kindly assign me your source point.

USER: My source code is LGA.

ASSISTANT: Ok, please give me a moment to check the availability of flights on the route LGA to ORD.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for contacting us, hope to serve you best next time.