You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Ryan Moore. I have a marriage event in IAH, can you help in searching a best flight for me from SEA?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates to search a flight?

USER: My date of travelling is 10/09 to 10/11.

ASSISTANT: There is a connecting flight from Spirit airlines, shall I proceed?

USER: proceed for booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.