Query: user: Hi, could you help me book some round trip flights please?
assistant: Sure, when do you intend to return?
user: I will likely come back on March 8th.
assistant: Sure, and where will you be departing from and travelling to?
user: I will be travelling from New York City to Chi-town.
assistant: I see, and when do you plan to depart?
user: I will be departing of 5th of March to Portland, OR instead, and this will be for 1 passenger only.
assistant: Sure, there are 2 available flights, one of which is an American Airlines flight departing at 4:45 pm and returning at 7:20 am which costs $323.
user: This sounds great to me!
assistant: Would you like e to purchase the tickets for you?
user: Sure, could you purchase economy class tickets for me?
assistant: Sure, please confirm your purchase of 1 economy class tickets for the American airlines flight from New York to Portland from March 5th at 4:45 pm to March 8th at 7:20 am.
user: That sounds great! May I know if this is a refundable ticket and which airport will I be arriving at?
assistant: Your ticket has been purchased. Your tickets is unfortunately un-refundable and you will be travelling to PDX International Airport.
user: Thank you, could you also help me search for a rental car in that area?
assistant: What time will you be picking up the car?
user: Around morning 9:30, I suppose.
assistant: Sure, and will you be using the car till March 8th.
user: No, I will only be using it till the 7th of March.
assistant: Will you be using the car from March 5th?
user: No, I will only need it from the 6th of March.
assistant: I see, would you like a Standard Accord available for your pickup at PDX International Airport on March 6th?
user: Are there any alternatives?
assistant: How about a Standard Civic available for your pickup at PDX International Airport on March 6th?
user: That sounds fine with me.

Intent: RentalCars:GetCarsAvailable