You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Carter.

ASSISTANT: How may I assist you?

USER: I would like to travel from IAD to CLT.

ASSISTANT: Ok, mention your trip dates to get a flight.

USER: My trip dates are 10/28 and 10/30.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry Catherine Carter, there is no flight for you with your preferable dates.

USER: Proceed with booking. Ok, no issues. Thank you for your help.

ASSISTANT: Welcome Catherine Carter.