You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you now?

USER: I need a direct flight to Chicago, can you help me?

ASSISTANT: Sure, may I know the travelling dates please?

USER: My travel dates are 01/14 and 01/16.

ASSISTANT: May I know your name please?

USER: Myself Rachel Brown.

ASSISTANT: Kindly, can you please mention the airport codes of your journey?

USER: My airport codes are from IAH to ORD.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found on your requested dates.

USER: Not an issue, thanks for checking.

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