You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: Please book a ticket from Oakland, CA-OAK to Houston, TX-HOU, for science festival.

ASSISTANT: Sure, please share me your travelling dates?

USER: Departure is on 04/16 and 04/18 will be my return.

ASSISTANT: Thanks for your details. We found 1012 Spirit airline with single connection and price of 100. Shall I proceed with booking?

USER: Please book a ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks.

ASSISTANT: Can I know your name?

USER: I am William Thomas.

ASSISTANT: Thank you for reaching us.