You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from Seattle, SEA to reach Boston, BOS?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please share your planned journey dates?

USER: My journey dates are from Dec 17 to Dec 19.

ASSISTANT: Let me know your connection limit.

USER: I need a way station in between journey.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in normal cost airlines.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: Ok, that's not a problem.

ASSISTANT: May I know your name?

USER: Thanks for your information. My name is Frank Lewis.

ASSISTANT: Thank you for approaching us.