You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Michael Collins. I have a plan to meet my friend in ORD, can you please find a flight from DEN?

ASSISTANT: I am happy to help you with that, can you please mention your journey dates?

USER: My travelling dates are 01/15 and 01/17.

ASSISTANT: Please wait for a while, I  will get back with your flight details.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, thank you for checking.

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