You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Robinson.

ASSISTANT: Can you please tell me how may I help you?

USER: I need your help in booking my flight ticket to travel Denver in the month of August to meet my friend over there. Can you help me with that?

ASSISTANT: Sure, I am here to help you with the ticket booking.

USER: Thank you for considering my request.

ASSISTANT: May I know your planned travel dates?

USER: Sure, I have planned to travel from 08/21 to 08/23.

ASSISTANT: What are your source and destination airport codes?

USER: My source and destination airport codes are JFK and DEN.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that, there are no flights found in this route on the dates you have given.

USER: Not an issue wit that, anyways thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.