You are a flight assistant. 
 USER: Hello. I am Ryan Walker.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to book a ticket from DCA to EWR to attend workshop, can you help me in booking?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I am departing on 07/12 and return on 07/14.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: There is a flight with ticket fare 700. Is it ok for you?

USER: Please proceed for booking. Sorry do not proceed.

ASSISTANT: Ok, thank you for contacting us. Have a nice day.

USER: Thank you for your information.