You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your guide at this moment?

USER: I am Jennifer Lopez from Denver. Can you please help me in flight ticket booking process from DEN to EWR?

ASSISTANT: I am glad to help you with your flight ticket booking. Can you please help me by providing your planned dates of your journey?

USER: Thank you for your positive response, I want to take off on 08/12 and please book my return ticket also on 08/14.

ASSISTANT: Please wait for sometime, I will check the suitable flight for your journey according to your specifications.

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

ASSISTANT: Thanks for waiting Lopez, there are no flights according to your specifications.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.