You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Janet Young. I want to book a direct flight from DFW to JFK, can you please help me?

ASSISTANT: Sure, I am euphoric to help you.

USER: Thank you.

ASSISTANT: Please provide me your depart and return dates.

USER: My depart date is Nov 11th and return date is Nov 13th.

ASSISTANT: Do you have any specific airline preference?

USER: No, I am comfortable in any airline.

ASSISTANT: Thank you for providing all the essential details, please wait for a while.

USER: Ok, take your time.

ASSISTANT: I am sorry to inform you that there is no flight available on given dates by you.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us, hope to serve you better next time.