You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Scott Perez.

ASSISTANT: How can I assist you?

USER: I want to book a flight ticket from PHL to DEN. Could you please help me out?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, I want to travel on 05/02 and return on 05/04.

ASSISTANT: Sorry, no flights found.

USER: It's ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.