You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: My name is Raymond Wilson. I have a plan to visit New York, can you help me for booking a flight ticket from DFW to EWR?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My travelling dates are Mar 09 and Mar 11.

ASSISTANT: Do you need any connection in between journey?

USER: I need a single connecting flight.

ASSISTANT: Please let me know your class preference.

USER: Any class is fine for me.

ASSISTANT: Do you have any other requirements?

USER: My return time is morning.

ASSISTANT: Ok, please be on hold.

USER: Sure, I will wait for your response,.

ASSISTANT: Sorry, there are no flights are available matching your credentials.

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

ASSISTANT: Thank you for choosing us.