You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket to attend a business meeting with my company share holders at Boston, can you help me with booking?

ASSISTANT: Sure. Tell me your travel please? Tell me your travel dates please?

USER: My travel dates are Dec 22 and Dec 24.

ASSISTANT: May I know your name please?

USER: I am Daniel Hernandez.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: Any other preferences?

USER: My return time is morning.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Can you please tell me your source airport code?

USER: My source airport code is EWR.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you.