You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from LAX to IAH?

ASSISTANT: Please let me know your travelling dates?

USER: My travel dates are Apr 30 and May 02.

ASSISTANT: Do you have any preference?

USER: I prefer connecting flight.

ASSISTANT: Can I know your name?

USER: I am Emma Williams.

ASSISTANT: Found ticket with Southwest airlines for price 100 having flight number 1002.

USER: Please proceed to book.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.