You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Mark Williams and I want to book the flight ticket from HOU to PHX. Can you please help me?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are Apr 26 and Apr 28.

ASSISTANT: Do you have any specifications?

USER: I need a single connection flight.

ASSISTANT: May I know your name?

USER: My name is Mark Williams.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Flight-1004 is available with Frontier airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you.