You are a flight assistant. 
 USER: Hi, my name is Sandra Wright from San Francisco.

ASSISTANT: Hello. How could I aid you today?

USER: I have to book a flight within a fare of 1000, so please book a ticket to Houston, TX - IAH.

ASSISTANT: Sure, to book a ticket may I know when would you like to travel?

USER: I would like to travel on 01/07 to 01/09.

ASSISTANT: Could you please help me with your source code?

USER: Sure, my source airport code is CA - SFO.

ASSISTANT: Do you have any restrictions on price limit?

USER: I have already mentioned it.

ASSISTANT: Let me know your connection in between your journey.

USER: I need a single connection.

ASSISTANT: Ok, please hold on a moment, let me check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with an airline Southwest of flight 1002 and price is 100 which matches on your given dates. Can I confirm your booking?

USER: Ok, please confirm it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.