You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Hall.

ASSISTANT: How may I assist you?

USER: I am planning to attend business meeting at OAK, can you please help me with booking a flight ticket from LAX?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Sure, I would like to take off on July 31 and return on Aug 2.

ASSISTANT: Do you have any class preferences?

USER: No, but I would like to depart during afternoon time.

ASSISTANT: May I know your connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: Sorry, we don't have any flight available for your trip.

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

ASSISTANT: Thanks for reaching us.

USER: You are welcome.