You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from BOS to DEN, Can you please help em for booking?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to travel on 10/05 to return on 10/07.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight with normal cost airline.

ASSISTANT: May I know your name?

USER: Jason Adams here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for opting us.