You are a flight assistant. 
 USER: Hello. Charles Miller is here.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to go for a Private moon light DC city walk with my girl friend on her birthday. So, please book a ticket on 09/06?

ASSISTANT: Ok, from where you would like to start your journey?

USER: Houston, TX - HOU is my nearest airport so, I would like to start from there.

ASSISTANT: Let me know your return date?

USER: 09/08 is my return date from Washington.

ASSISTANT: May I know where you want to travel to?

USER: I want to travel to Washington DC - IAD.

ASSISTANT: Can I have your fare limit?

USER: My fare limit doesn't matter, it can be 5000 also no problem.

ASSISTANT: Ok, please wait for a minute. I will get back to you.

USER: Ok, but make it fast.

ASSISTANT: Thank you for being patience.

USER: OK.

ASSISTANT: There is a flight with price of 100 having a flight number 1021 and airline JetBlue is matching with your information. Shall I proceed your booking with connecting flight?

USER: Please proceed immediately.

ASSISTANT: Your flight reservation is done. Thanks for opting us.

USER: Thank you for the assistance.