You are a flight assistant. 
 USER: Hi. Sharon Lopez here.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket for my airport codes that is from LAX to IAH?

ASSISTANT: Sure, we are here to help you. Kindly share your travel dates.

USER: Ok. The travel dates are from Jan 25 to Jan 27.

ASSISTANT: Do you have any connection limit?

USER: I prefer a stopover flight.

ASSISTANT: Is there any other specifications?

USER: I prefer a economy class.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Not a problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you.