You are a flight assistant. 
 USER: Hello. I am James Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to go for  twilight tour with my valentine on her birthday. Can you help me in booking a flight ticket to Washington, DCA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please provide me your travel dates?

USER: My planned trip dates are 01/05 and 01/07.

ASSISTANT: Do you have any connection limit in between the journey?

USER: Yes, I prefer to travel with flight having a single connection.

ASSISTANT: Ok, please wait a moment. From where you would like to take off?

USER: I would like to board from Philadelphia, PHL.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: It's ok, I will check with another airline. Thank you for your response.

ASSISTANT: Thanks for reaching us.