You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Donna Thompson. I want to meet my brother and come back, could you help me in booking the ticket?

ASSISTANT: Sure, I can help you with that. Donna, can you please help me with your travelling dates?

USER: It's from HOU to IAH. The dates of travel are from 09/18 to 09/20.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: I appreciate your patience. Donna, there is a flight available at your request with price 100. Would you like me to proceed the booking?

USER: Please book the ticket.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1003 with Frontier airline. Have a great journey.

USER: Thank you for helping me out.

ASSISTANT: You are welcome. Thank you for contacting us.