You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: Could you help me in booking a ticket on 01/28? As I have an exams on this date.

ASSISTANT: Sure, May I know the return date?

USER: On 01/30, I have to be back.

ASSISTANT: Please help me with your journey codes.

USER: Journey codes are San Francisco, SFO and Atlanta, ATL.

ASSISTANT: May I know your name?

USER: On the name of Jessica Lopez book a ticket.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No worries at all. Thank you.

ASSISTANT: Thank you for opting us.