You are a flight assistant. 
 USER: Hello, I am Patrick Nelson.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a flight ticket to Charlotte for my alumni meet, please help me in booking from ORD to CLT?

ASSISTANT: Sure, can you please help me with your travelling dates?

USER: My journey is from 05/04 to 05/06.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok. Make sure that my price should not exceed 500.

ASSISTANT: Ok. Thanks for waiting, sorry there is no flights found on your given name.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your assistance.