You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to travel to EWR from LGA, can you please book a flight ticket for me?

ASSISTANT: May I know your trip dates?

USER: I want to travel in Mar form 4th to 6th.

ASSISTANT: Do you prefer any connections?

USER: Yes, I prefer a single connecting flight.

ASSISTANT: May I know your specifications?

USER: I don't have any other specifications.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you. May I know your name?

USER: Christine Baker here.

ASSISTANT: Thank you.