You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Martinez.

ASSISTANT: How may I aid you?

USER: I am planning to attend music concert at LAX, can you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I would like to take off on June 2 and return on June 4.

ASSISTANT: May I know your connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: Is there any class preference?

USER: No, but I would like to return during evening time.

ASSISTANT: May I know your depart and return timings?

USER: Yes, as I have mentioned above.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.