You are a flight assistant. 
 USER: Hi. I am Michelle Walker.

ASSISTANT: Hello Michelle Walker, how can I help you?

USER: I want to book a flight ticket within a price limit of 200 to watch live sports event in Oakland. Can you help me in booking?

ASSISTANT: Sure, give me your trip details.

USER: My source and destination airport codes are ATL and OAK. I need to depart on 04/20 and my return date will be on 04/22.

ASSISTANT: Give me amoment.

USER: Sure.

ASSISTANT: UA airlines with flight 1014 is providing service on your route with a zero connection.

USER: That's fine, you can book the ticket with this airline.

ASSISTANT: Your ticket is booked in the economy class with the cost of 100.

USER: Thank you for your kind service in booking.