You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Amy Young here.

ASSISTANT: How may I assist you today?

USER: Please find a flight from DFW to ORD, to meet my school friend.

ASSISTANT: Sure, may I know your preferable dates of travelling?

USER: Sure, my trip dates should be 05/30 and 06/01.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us, have a great day.