You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from LAX to PHL, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your name please?

USER: Sure, Donna Hernandez here.

ASSISTANT: May I know your planned travelling dates please?

USER: Sure, my journey dates are Aug 13 and Aug 15.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit please?

USER: I prefer maximum one connection.

ASSISTANT: Sorry Hernandez, there is no flight found as per your travelling dates.

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

ASSISTANT: Thank you for reaching us.