You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: My name is Robert Turner. I am looking to book a flight ticket to meet my friend in Detroit. Can you help me for booking a flight ticket from EWR to DTW?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My travelling dates are Jan 05 and Jan 07.

ASSISTANT: Do you have any requirement?

USER: My return time is morning.

ASSISTANT: Sorry Robert Turner, there is no flight with your requirement.

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

ASSISTANT: Thank you for reaching us.

USER: Welcome.