You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Joseph Wilson. I have to go to San Francisco for receiving my parents coming from India, can you please help me to book a ticket from IAH to SFO? My trip dates are Sep 19 to Sep 21.

ASSISTANT: Do you need any halt in your journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: There is a connecting flight with fare of 200 and 1025 flight number. Shall I proceed?

USER: You can book it.

ASSISTANT: Your seat has been reserved in economy class with Southwest airline.

USER: Thank you for helping.

ASSISTANT: Thank you for choosing us.