You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you today?

USER: Please book a ticket from Seattle, WA-SEA to Houston, TX-IAH.

ASSISTANT: Sure, we are here to help you. Kindly provide me your travel dates.

USER: Departure is by 06/23 and will return on 06/25.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 600. Shall I proceed with booking?

USER: Please do not book flight.

ASSISTANT: Ok. May I know your name?

USER: I am Stephanie Baker.

ASSISTANT: Thanks for reaching us.

USER: Thanks.