You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you today?

USER: I want to book a flight ticket from BOS to EWR. Can you find a flight ticket for me?

ASSISTANT: Sure, do you need a connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want a normal cost flight to travel.

ASSISTANT: Can I know your good name?

USER: Yes, I am Brian Baker.

ASSISTANT: Please share your trip dates.

USER: Ok, my planned trip dates are on July 28 and return on July 30.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, not a problem. Thank you for your help.

ASSISTANT: Thank you.