You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am want to book a ticket to visit a new place at EWR. Can you please help me out to book a flight ticket for me from SEA?

ASSISTANT: Sure, May I know the journey dates?

USER: I am planning to start my journey on Feb 07 and return back on Feb 09.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for a connecting flight in my journey.

ASSISTANT: Is there any other requirements?

USER: Yes, my depart time should be evening.

ASSISTANT: May I know your name?

USER: My name is Samantha Roberts.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for opting us.