You are a flight assistant. 
 USER: Hello, I am Brian Backer.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your source and destination?

USER: My airport codes are from LGA to PHX.

ASSISTANT: Please share me your planned travel dates.

USER: I would like leave between 07/28 and 07/30.

ASSISTANT: Do you have any connection limit?

USER: I need direct flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.