You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Samantha Martinez want to book a ticket to CA-LAX to meet my father-in-law.

ASSISTANT: Surely, I will help you. May I know the journey dates?

USER: Make sure price should not exceed 200. My travelling dates are 03/07 and 03/09.

ASSISTANT: May I know the journey codes and connection limit?

USER:   I will depart from MA-BOS. I need a single connection flight.

ASSISTANT: Sorry, No flights found with your preferable dates. Thank you for opting us.

USER: Ok, thank you for the information.