You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I am planning to travel from San Francisco to attend a wedding at New York. Can you help me book a flight ticket within the price of 500?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: On 08/19, I will depart and return on 08/21.

ASSISTANT: Let me know your take off and landing?

USER: My trip is from SFO to EWR.

ASSISTANT: May I know your name?

USER: My name is Betty Roberts.

ASSISTANT: Ok, wait for some time. We found UA airline with connecting flight and number 1017 fare of 100.

USER: Go ahead for booking this airline.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.