You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: This is William campbell.

ASSISTANT: How may I assist you?

USER: Please book a flight from CA-SFO on 07/13. And my return destination is TX-HOU on 07/15.

ASSISTANT: OK, could you provide your price and connection limit?

USER: Kindly, note my limit should be 5000 with no connections.

ASSISTANT: OK, may I know correct connection limit?

USER: Can you please let me know the price of the ticket?

ASSISTANT: Sure, may I price limit is 100 and connection limit is 1.

USER: OK. Book it.

ASSISTANT: Yes, your booking is confirmed.

USER: Thank you.

ASSISTANT: Have a safe journey.