You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to start a new business at Las Vegas, help me in booking my flight ticket from TX-DFW.

ASSISTANT: Sure, may I know your Destination code?

USER: NV-LAS is my destination airport code.

ASSISTANT: Kindly provide your name.

USER: My name is Margaret Moore.

ASSISTANT: Let me know your travelling dates for further booking process.

USER: I want to fly out on 04/19 and intend to return on 04/21.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1025 and Hawaiian as airline, the cost of the ticket is 100. Shall I go with booking?

USER: Please proceed with my booking.

ASSISTANT: Your ticket is booked, thank you for reaching us.

USER: Thank you for booking my ticket.