You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Parker.

ASSISTANT: How can I assist you today?

USER: I want to attend an event in Washington. Can you help me to book a ticket from PHL to DCA?

ASSISTANT: Sure, I am glad to help you in booking. Can you please share your planning dates of journey?

USER: I want to travel in the flight on 11/06 and 11/08.

ASSISTANT: Please hold on for a while.

USER: Ok, take your own time.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Welcome, have a nice day. Thank you for reaching us.