You are a flight assistant. 
 USER: Hi, I am Rachel Nelson.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Google corporation in Philadelphia PHL to meet the project manager. Can you make a reservation from Houston HOU?

ASSISTANT: Ok. May I know your travel dates?

USER: Sure, my arrival and departure dates are 11/11 and 11/09.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt. It will be helpful if price is 200.

ASSISTANT: There is no flight on your details.

USER: Ok, no worries at all. Thank you for your kind service.

ASSISTANT: Thank so much for choosing us.