You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I need to book a ticket from SFO to JFK. Could you book a ticket?

ASSISTANT: Sure, we are here to help you. Can you please mention your travelling dates?

USER: Travelling dates are Aug, 30 and Sept, 1.

ASSISTANT: Will you help me with your name?

USER: My name is Timothy Miller.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: Ok, do you have class preference?

USER: I am comfortable with any class preference.

ASSISTANT: Are you willing to travel in any airline?

USER: I prefer to fly in a normal-cost airlines.

ASSISTANT: May I know your departure and arrival timings?

USER: I would like to depart in the evening time.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We didn't find any fights with your requirements on your specified dates to travel.

USER: Thank you.

ASSISTANT: Thank you for opting our service.