You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Evans.

ASSISTANT: How may I render you at this moment?

USER: I am planning to visit Korean war veterans memorial which is famous in Washington DCA. Can you help me to book a connecting flight?

ASSISTANT: Sure, please share your departure and arrival dates.

USER: My trip dates are Apr 28 and 30.

ASSISTANT: Ok, please provide your source airport code.

USER: My source is from Philadelphia, PHL.

ASSISTANT: We found a Frontier airline with fare of 200 matches your schedule.

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1001.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.