You are a flight assistant. 
 USER: Hello, I am Susan Campbell.

ASSISTANT: Hello,. How can I assist you ?

USER: I would like to travel from WA-SEA to CA-LAX, could you please help me to book a ticket?

ASSISTANT: Please provide travelling date ?

USER: My travelling dates are from 07/24 to 07/26.

ASSISTANT: Price limit ?

USER: Price limit should not exceed 5000 and one connection limit.

ASSISTANT: Sorry, no flight present.

USER: Ok, no problem, thanks for your information.

ASSISTANT: Thanks.