You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER:  I am Patrick Gonzalez. I want to attend a memorial service of my grandfather at TX-HOU. Can you book  a ticket on 01/02.

ASSISTANT: Sure. May I know your return date?

USER:  I will return on 01/04.

ASSISTANT: Let me know your origin.

USER:  I will depart from MA-BOS.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: There is a flight 1028 in UA airline and price 100 with a connection. Shall I proceed?

USER: Ok, you can proceed with booking.

ASSISTANT: Your ticket has been reserved.

USER:  Thank you for reserving.

ASSISTANT: Thank you.