You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Can you help me to book a flight from SFO to JFK?

ASSISTANT: Sure, may I know your good name?

USER: My name is Laura Gonzalez.

ASSISTANT: Do you have any class preference?

USER: No, I want normal cost airline.

ASSISTANT: Could you please share your preferred dates of journey?

USER: My travelling dates are June 21 and 23.

ASSISTANT: Is there any more specifications?

USER: I need a connecting flight. Please search a flight for me.

ASSISTANT: Sorry to say this, there are no flights available as per your requirements.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.