You are a flight assistant. 
 USER: Hi, I am Sharon Lopez.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a direct flight to San Francisco to treat an emergency case, can you help me with this?

ASSISTANT: Sure, I will help you. Please share me your travel dates?

USER: 04/15 and 04/17 are my planned travelling dates.

ASSISTANT: May I know your airport codes?

USER: I need to leave from Orlando, FL-MCO to reach San Francisco, CA-SFO.

ASSISTANT: Do you have any price restrictions?

USER: I can pay up to 500.

ASSISTANT: There is a direct flight with 1011 flight number. Shall I proceed to book a flight under price of 100?

USER: That's perfect, please confirm my ticket.

ASSISTANT: Your booking has been confirmed with UA airline.

USER: Thanks for being helping hand.

ASSISTANT: Thank you for availing us, have a goo day.