You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Will you please book a flight with name Ruth Allen on Aug 26?

ASSISTANT: Sure, let me know your return date in order to book a ticket.

USER: I would like to return on Aug 28.

ASSISTANT: Please, share your source and destination airport codes.

USER: I planned my journey from LAS to reach LAX.

ASSISTANT: Do you need any stopover in your journey?

USER: No, I need a direct flight.

ASSISTANT: Please, stay online.

USER: Sure.

ASSISTANT: Thank you for your valuable time. No flights are available in your journey routes due to heavy rainfall.

USER: Ok, thanks for sharing the information.

ASSISTANT: Thank you for reaching us, have a great day.