You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Mary Lee. I would like to book a ticket from HOU to IAH.

ASSISTANT: Ok, may I know your planned travel dates?

USER: My travel dates are 11/21 and 11/23.

ASSISTANT: Do you need a halt in between your journey?

USER: I would like to travel by single connection flight.

ASSISTANT: Do you have any other specifications?

USER: No, I have none.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Frontier, flight number: 1020 and price is 200 with one connection.

USER: Proceed with the booking please.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.