You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I know your name?

USER: Sure, my name is Sandra Green.

ASSISTANT: How can I aid you?

USER: Can you please book me a flight ticket under the fare of 5000?

ASSISTANT: Sure, Please share your travelling dates.

USER: Ok, my travelling dates are on 05/27 to 05/29.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a break between my journey.

ASSISTANT: May I know your airport codes?

USER: Sure, I intend to start my journey from Los Angeles, CA - LAX. And return from Phoenix, AZ - PHX.

ASSISTANT: Please wait a while I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, there are no flights found according to your requriments.

USER: No problem, thanks for your kind service.

ASSISTANT: Thank you for choosing us.