You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am Kevin Garcia from Phoenix. I would like to visit to Seattle, WA - SEA with my step mom to attend for my cousin's wedding, can you help to book a flight ticket with single connection?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 08/22 to 08/24.

ASSISTANT: From where you want to start your journey?

USER: I am boarding from Phoenix, AZ - PHX.

ASSISTANT: Do you have any preferences?

USER: My budget is up to 200.

ASSISTANT: Thanks for your details. There are no flights found on your data.

USER: Ok, I will choose another alternative to go. Thank you.

ASSISTANT: Thank you.