You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Brenda Williams.

ASSISTANT: Williams, how can I help you?

USER: I am planning to reserve a flight ticket to SEA from CLT, could you please search any inexpensive flight?

ASSISTANT: Please share your trip dates.

USER: Definitely, I would like to fly on 05/19 and 05/21.

ASSISTANT: Flight 1000 of Southwest airlines is available for you.

USER: Alright, please reserve me a seat.

ASSISTANT: Williams, your ticket is reserved.

USER: Thanks a lot for your quick service.

ASSISTANT: Thank you for reaching us.