You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: I am planning to go Seattle to visit my sister. Can you help me to book a ticket?

ASSISTANT: Sure, please share your journey details.

USER: My airport codes are BOS-SEA.

ASSISTANT: Ok, Is there any restrictions on price?

USER: Price should not cross 200.

ASSISTANT: May I know your name please?

USER: Rebecca Walker here.

ASSISTANT: Ok, please specify your dates.

USER: Dates are 05/27 and 05/29.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for your time, there is a connecting flight with a fare of 200 in 1002 Frontier airline.

USER: Please do the booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.