You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm planning to attend a conference, can you book a ticket from IAH to DEN?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned departure and return travel dates are 15th and 17th of May.

ASSISTANT: Please share me your name to proceed next.

USER: My name is Nicholas Hall.

ASSISTANT: Do you have any specifications?

USER: I'm looking for single connected flight.

ASSISTANT: Flight-1028 is available with Southwest airlines having single connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: That's fine, you can proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you so much for your help.

ASSISTANT: Thank you so much.