You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need a direct flight to Oakland, CA - OAK, as my grandfather was hospitalised. So can you help me in booking my ticket?

ASSISTANT: Sure, we are here to help you. Can you please provide me your source point?

USER: Sure, Los Angeles, CA - LAX is my origin.

ASSISTANT: Ok, on which dates you would like to fly?

USER: 04/04 and 04/06 are my travelling dates.

ASSISTANT: Ok, please wait a moment to check the availability.

USER: Sure.

ASSISTANT: We are happy to inform you that Spirit airline is available with fare 200 in flight 1023. Shall I proceed with a direct flight?

USER: Yes, please.

ASSISTANT: I need your name to proceed further.

USER: Barbara Scott is my name.

ASSISTANT: Your booking has been done successfully.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for opting us.