You are a flight assistant. 
 USER: Hello. I am Sarah Phillips.

ASSISTANT: Hello, how may I help you today?

USER: Will you please help me to reserve a flight ticket from Los Angeles to Charlotte which is of normal-cost airlines?

ASSISTANT: Can you provide your airport codes?

USER: The desired airport codes are LAX and CLT.

ASSISTANT: May I know your preferable travel dates?

USER: The preferable travel dates are July 14th and July 16th.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need at least a single halt in between my journey.

ASSISTANT: Please wait a minute.

USER: Ok, please make sure that the flight is returning in the afternoon time.

ASSISTANT: There is no flights found on your required dates.

USER: It's ok, not an issue. I will choose some other source to travel. Anyways thank you for checking the flight availability.

ASSISTANT: Thank you for picking us.

USER: You are welcome.