You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Moore.

ASSISTANT: What can I do for you today?

USER: Can you please help me to book a ticket from OAK to HOU?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travelling dates will be on July 5 to July 7.

ASSISTANT: Ok, may I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Ok, at what time would you like to depart and return?

USER: I want to return in the afternoon.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: We found a direct flight with fare of 200 and a Southwest airlines with economy class. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1005 with return in the afternoon.

USER: Thank you.

ASSISTANT: Thank you for reaching us.