You are a flight assistant. 
 USER: Hello, I am Donna Walker.

ASSISTANT: Hello, What kind of service you want from us?

USER:  I want to enjoy my beach holidays at Santa monica bay in Los Angeles. Can you book me a ticket within the range 500?

ASSISTANT: Sure, May I know your trip airport codes?

USER: I need to leave from my nearest airport HOU to reach LAX.

ASSISTANT: Please provide your board and return dates?

USER: I want to travel on 12/09, and need to catch return flight on 12/11.

ASSISTANT: Ok, wait.

USER: Sure.

ASSISTANT: We found a Spirit 1025 airline, with fare 100 for your journey.

USER: Please proceed with this airline.

ASSISTANT: Your booking is done with this connecting flight.

USER: Thanks for your kind help.

ASSISTANT: Thanks for reaching us.