You are a flight assistant. 
 USER: Hello, I am Nichole Johnson.

ASSISTANT: Hello, how may I serve you?

USER: I would like to fly to Houston to exhibit my paintings at Houston art gallery, can you help me to book a flight ticket within the fare limit 500?

ASSISTANT: Sure, may I know your journey codes?

USER: My nearest city is Minneapolis and it's airport code is MN-MSP. My destination is Houston, TX-HOU.

ASSISTANT: Kindly provide your travelling dates.

USER: I need to depart on 08/19 and my return date will be on 08/21.

ASSISTANT: There is a flight found with number 1026 and Delta as airline. The cost of the ticket is 100.

USER: That's fine, please proceed with the booking.

ASSISTANT: Your ticket is booked with a connecting flight.

USER: Thank you for your kind service in booking.

ASSISTANT: Thanks for availing us.