You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a ticket from LAX to PHL, can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am travelling on these dates Feb 12th and 14th.

ASSISTANT: Do you have any limits on number of connections?

USER: I need single connected flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: I prefer economy class.

ASSISTANT: May I know your name for the booking process?

USER: Dorothy Jones here.

ASSISTANT: Sorry, no flights are available on your required dates.

USER: Ok no problem, thank you for your services.

ASSISTANT: Welcome, thank you for reaching us.