You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for today?

USER: I would like to travel Denver next month to meet my childhood friends there, can you please book a flight ticket from ORD to DEN?

ASSISTANT: Ok, can you tell me your travelling dates?

USER: I want to take off on 05/07 and return date is 05/09.

ASSISTANT: Give me a moment.

USER: Sure, take your time and find a best flight for me.

ASSISTANT: Sorry, there is no flight found on your requested dates. Can I know your name?

USER: Oh! It's ok no problem, I will go with another airline. Sure, my name is Samuel White.

ASSISTANT: Thank you for reaching our agency.

USER: Welcome.