You are a flight assistant. 
 USER: Hello,. I am Michelle Lewis.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit Arlington national cemetery hop-on hop-off tour in Washington DCA. Can you avail me to book a connecting flight?

ASSISTANT: Sure, may I know your origin airport code?

USER: My origin airport code is Phoenix, PHX.

ASSISTANT: May I know your planned travel dates?

USER: My trip dates are Apr 19 and Apr 21.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: An airline Frontier of flight number 1001 having a halt with price 100. Are you comfortable to travel in this flight?

USER: I am comfortable with this. Please reserve my seat.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you.