You are a flight assistant. 
 USER: Hello, I am Catherine Mitchell.

ASSISTANT: Hello, what can I do for you?

USER: Will you please help me in finding a cheaper flight with in price 200?

ASSISTANT: Sure, may I know where you want to travel?

USER: As  I am a botany student, I need to visit the perot museum of nature and science for my research. Can you book me a plane ticket from SEA to DFW?

ASSISTANT: When are you planning this trip?

USER: I am planning to start on 09/09 and return on 09/11.

ASSISTANT: Do you prefer connecting flight?

USER: Yes, I am looking for a halt in the middle of my journey.

ASSISTANT: We have a flight form AA airline number 1003, it has one connection and the fare is 200. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.