You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I address  you?

USER: I want to book a flight ticket from LGA to SFO to attend my sisters marriage.

ASSISTANT: Sure, Please share me your travelling dates.

USER: My travelling dates are June 14 and June 16.

ASSISTANT: May I know your name?

USER: I am Lisa Collins.

ASSISTANT: Are you comfortable with direct flight?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: We found a connecting flight with an Frontier airlines, flight number:1008.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.