You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Christopher Lewis want to visit IAH, can you book a ticket from OAK?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my travelling dates will be 08/20 and 08/22.

ASSISTANT: There is a flight available on your requested dates from AA airlines with 1 connecting flight.Shall I confirm your booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket is booked with flight 1021.

USER: Thank you.

ASSISTANT: You are welcome.