You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you reserve a air ticket on the name Nancy Rodriguez?

ASSISTANT: Sure, let me know your travelling dates?

USER: I want to start on 05/17, my return date to Seattle is on 05/19.

ASSISTANT: Please provide your airport codes.

USER: I want to start from Seattle WA-SEA, my landing airport in Los Angels is CA-LAX.

ASSISTANT: Let me know your specifications?

USER: I need a connecting flight with a fare of 1000.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: Its ok, I will find out other alternative. Thank you for your effort.

ASSISTANT: Thank you for choosing us.