You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Jeffrey Taylor.

ASSISTANT: May I know on which dates your willing to travel?

USER: Sure, I would like to take off on Sept 5 and return on Sept 7.

ASSISTANT: May I know your class preference please?

USER: I am ok with any class preference, but I would like to depart during evening time and return during morning time.

ASSISTANT: May I know your connection limit please?

USER: I am looking for a connecting flight.

ASSISTANT: Sorry Taylor, there is no flight found as per your travelling details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: You are welcome.Thank you for reaching us.

USER: You are welcome.