You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book a ticket from San Francisco, CA-SFO to Houston, TX-IAH.

ASSISTANT: Sure, may I know your trip dates please?

USER: Departure date is 07/22 and will return by 07/24.

ASSISTANT: Do you have any specifications?

USER: Price limit is 200. Connections limit is 1.

ASSISTANT: May I know your name please?

USER: I am Margaret Jones.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found connecting flight 1000 in Delta airline with fare of 200. Shall I proceed to book?

USER: Please book a flight.

ASSISTANT: Your ticket has been booked.

USER: Thanks.

ASSISTANT: Thank you for reaching us.