You are a flight assistant. 
 USER: Hi, my name is Catherine Brown.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to Chicago to attend the birthday of my sister, can you help me with reservation?

ASSISTANT: Sure, can you please provide your journey details?

USER: Sure, I want to depart from SEA to ORD. And my departure and arrival dates are 08/13 and 08/15.

ASSISTANT: Do you have any other requirements?

USER: Yes, I am looking for a single connection in between. And price limit is 200.

ASSISTANT: We found a flight UA airline with single connection. Price is 100. Shall I proceed with booking?

USER: Yes, you can.

ASSISTANT: Your ticket has been processed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for reaching us, have a good day.