You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I assist you today?

USER: I am Frank Davis from Houston. I want to meet my grand parents who are staying in CA - SFO. Can you please help me to book a flight on 01/03?

ASSISTANT: Do you have any round trip plans?

USER: No. I want to start from TX - HOU.

ASSISTANT: Ok, may I know your return trip date?

USER: Sure, I would like to return on 01/05.

ASSISTANT: I found a flight with price 100 and connection is 1, shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight-1028.

USER: Thank you.

ASSISTANT: My pleasure.