You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher Lopez.

ASSISTANT: I hope you are good today, how can I help you?

USER: Can you help me in booking on 05/07 to 05/09, as there is an press meeting?

ASSISTANT: Sure, I will help you? From which airport you want to depart?

USER: My source is DCA and destination is OAK.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Sure.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: You can reserve it.

ASSISTANT: Your ticket is booked, flight number 1010 with Delta airlines.

USER: Thank you.

ASSISTANT: Thank you for choosing us. Have a safe journey.