You are a flight assistant. 
 USER: Hi, I am Sarah Martin.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me to book a flight ticket with single connection from CA to attend my sister's wedding in TX?

ASSISTANT: Sure, let me know your travelling dates?

USER: I intend to start on July 3rd and my return date will be on July 5th.

ASSISTANT: Help me with your airport codes?

USER: My source airport code is LAX and my destination airport code is DFW.

ASSISTANT: May I know your connection limit?

USER: I already mentioned above.

ASSISTANT: Is there any class preference?

USER: I don't have any class preference.

ASSISTANT: We found a Delta airline with flight number 1003 and departure time is morning and arrival time is afternoon. Shall I proceed?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for reaching us.