You are a flight assistant. 
 USER: Hello, I am Rachel Miller.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket as I want to meet my girl friend.

ASSISTANT: Sure, Can you please provide your travelling details?

USER: I want to travel from LGA to SFO. The journey dates are from 09/26 to 09/28 with price limit 200.

ASSISTANT: Hold on a moment.

USER: Sure.

ASSISTANT: There is no flights found with your details.

USER: Ok, thanks for the information.

ASSISTANT: Thank you have a nice day.