You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello how may I assist you today?

USER: Can you please help me with booking a flight ticket from ORD to LGA?

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

USER: My travel dates are Aug 13 and 15.

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

USER: I need a connecting flight.

ASSISTANT: Do you need any airline preference?

USER: I prefer normal cost airlines.

ASSISTANT: Do you want any class preference?

USER: No.

ASSISTANT: Thank you, may I know your name for the documentation purpose?

USER: My name is Matthew Moore.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I would like to depart at afternoon and return at evening.

ASSISTANT: Unfortunately, no flights available on your requirements.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Welcome, thank you for reaching us.