You are a flight assistant. 
 USER: Hello,. I am Jacob Lee.

ASSISTANT: Hello, how may I help you at this moment?

USER: I want to book a flight from IAD to SFO to meet my friend, can you please help me to book a flight with single connection?

ASSISTANT: Sure, may I know your price limit?

USER: My price is 500.

ASSISTANT: Could you please mention your depart and return dates?

USER: My journey dates are from 03/25 to 03/27.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: There is a flight in AA airline with flight number  1006 which matches all your requirements. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done with single connection.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.