You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Catherine Thomas here, I want to reserve my ticket within the connections limit 0, can you please help me in this?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Ok, my dates of journey is from 02/17 to 02/19.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My respective airports codes are from PHX to LAX.

ASSISTANT: Please give me a moment.

USER: Sure, but make sure that the price limit is 200.

ASSISTANT: There is no flights available under your preferable details.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thanks for reaching us, have a great day.