You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service that you are looking from our agency?

USER: I am Rebecca Brown, want to travel from SFO to LAX. Please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: My trip dates are from 01/13 to 01/15.

ASSISTANT: Please wait a moment to check the flights in your route.

USER: Ok.

ASSISTANT: Based on your travel details, I have found a flight with a single connection with a fare of 600 from Delta airlines. If you are ok with this, please inform me to book the flight.

USER: My budget is 500. Can you check once within my budget limit?

ASSISTANT: Sorry, there are no flights available within that price range.

USER: That's fine, thank you.

ASSISTANT: Thank you for reaching to our services, have a great day.