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

ASSISTANT: Hello, how can I aid you at this moment?

USER: On my vacation I am planning to go for Seattle winery tour along with my friends.Can you reserve a flight ticket on 04/26?

ASSISTANT: Ok, I am happy to help you with our best airlines.

USER: Thank you.

ASSISTANT: Let me know your boarding and landing airport codes?

USER: My boarding will be from Houston, IAH. SEA is my landing airport code.

ASSISTANT: Ok, when would you like to return?

USER: I intend to return on 04/28.

ASSISTANT: We found a flight with couple of connections in Southwest airline. Are you ok with this?

USER: No, I need a single connection flight. Thank you for your information.

ASSISTANT: Sorry, hope to serve you better next time. Thanks for reaching us.

USER: Ok.