You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I want to start on Apr 6 and return on Apr 8.

ASSISTANT: May I know your name?

USER: Christopher Smith here.

ASSISTANT: Do you have any other specifications?

USER: I would prefer business class with single connection.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: We found Southwest airlines with connecting flight and number 1022 fare of 600, Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.