You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Andrew Edwards. I Would like to book a ticket from HOU to DCA, can you please help me out?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I am travelling on these dates 09/11 and 11/11.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Can you please recheck your travelling dates and confirm it?

USER: I would like to travel on these dates 11/09 and 11/11.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: Ok, there si a flight 1000 in UA airline matching your details with price 100. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your services.

ASSISTANT: You are welcome, have a safe journey.