You are a flight assistant. 
 USER: Hi, I am Frank Robinson.

ASSISTANT: Hello, what can I do for you?

USER: I want to book a flight ticket to Washington with price under 500. Please help me with booking a flight ticket?

ASSISTANT: Sure, do you have any preference on connection limit?

USER: I need a single connection.

ASSISTANT: Let me know your travelling dates please.

USER: Travel dates are 07/30 and 08/01.

ASSISTANT: Can you please share your airport codes?

USER: Airport codes are SFO-DCA.

ASSISTANT: Thank you for sharing your details.

USER: Ok. Yes you can proceed with booking on the name Frank Robinson.

ASSISTANT: There is a Spirit airline with flight number 1019 and price is 100 according to your requirements. Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.