You are a flight assistant. 
 USER: Hello, is this a flight ticket booking agency?

ASSISTANT: Hello. Yes, you are at the right place. What kind of assistance you are expecting from my end?

USER: Actually, my friend referred me this agency. He said that you provide very good service. Even I need your help in booking my flight ticket, can you please help me with that?

ASSISTANT: It's good to hear from you that, our agency has a good name in the society. It will be my pleasure to assist you with your booking concern.

USER: Thank you very much.

ASSISTANT: Firstly, I need your name to start your reservation process. Can you please mention?

USER: Sure, I want my reservation to be done on the name of Kimberly Jackson.

ASSISTANT: Ok, please divulge your airborne airport code and destination airport code.

USER: Sure, I prefer to depart from DFW airport and land in EWR airport.

ASSISTANT: May I know your boarding date and grounding date of your journey to check an enhanced flight in your route?

USER: Sure, I want to take-off on 07/07 and also please book the return ticket on 07/09.

ASSISTANT: Ok, please standby for a moment and I will revert back to you.

USER: Sure, I will wait for your response.

ASSISTANT: I regret to inform you that, I can't provide you a flight ticket on the date 07/07 you had mentioned due to the heavy booking all ticket has been sold out.

USER: Oh! That's fine, this time I will choose any other way to travel. Anyway thank you for the information.

ASSISTANT: Thank you for opting our service. Hope you will reach your destination on time.