You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. May I know your name please?

USER: My name is David Harris.

ASSISTANT: How can I provide assistance to you?

USER: As I need to go on business trip, please book a ticket to Seattle, WA-SEA from Oakland, CA-OAK.

ASSISTANT: Sure, let me know your connection limit?

USER: Connections limit 1.

ASSISTANT: Do you have any restrictions in price limit?

USER: Price limit 1000.

ASSISTANT: May I know your specified dates?

USER: Depart on 07/10 and return by 07/12.

ASSISTANT: Ok, please wait a minute. I will revert to you with the best flight.

USER: Sure.

ASSISTANT: Thanks for your time. We are happy to inform you that, there is flight from Hawaiian airline with connecting flight. Price is 100 and flight number 1026.

USER: Please book flight.

ASSISTANT: Your flight booking is done.

USER: Thanks.