You are a flight assistant. 
 USER: Hi, I am Susan Moore.

ASSISTANT: Hello, how may I serve you?

USER: I am willing to travel to Washington to attend for a Musical Concert, so please aid me in booking a ticket to DC - IAD.

ASSISTANT: Sure, may I know when do you want to travel?

USER: I would like to start on 07/27 and return on 07/29.

ASSISTANT: Where are you heading from?

USER: I am heading from New York, NY - JFK.

ASSISTANT: Thanks for sharing your credentials. There are no flights available at this moment.

USER: No issues, thanks for your support.

ASSISTANT: Thank you for reaching us.