You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: We are planing to keep a food truck in DCA, so my partner asked me to come from SFO to DCA, can you help me out in booking a ticket?

ASSISTANT: Sure, when you want to meet your partner?

USER: I would like to start on 01/14 and return on 01/16.

ASSISTANT: Fine, let me check please wait for a while.

USER: Ok.

ASSISTANT: I am appreciating your patience, I got a flight-1011 of UA airlines, which satisfies your requests.

USER: Please book one seat for me.

ASSISTANT: May I know your name for booking purpose?

USER: My name is Gary Mitchell.

ASSISTANT: Ok, your ticket has been done Gary.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.