You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Nicholas Parker, I would like to go my sister's home, so can you help me booking flight on 06/22?

ASSISTANT: Sure, may I know your location airport code?

USER: My nearest airport codes are IAH to SEA.

ASSISTANT: Give me a minute.

USER: Ok, I will wait for your reply.

ASSISTANT: For booking, I need your another date of journey. Can you share it?

USER: I am going to return on 06/24.

ASSISTANT: There is a flight with fare 200 in airline Delta, the connection is 1 and flight number is 1010. Can I book it?

USER: Ok, proceed to booking that flight.

ASSISTANT: Your ticket is reserved, have a safe trip.

USER: Thank you for confirming my flight ticket.

ASSISTANT: Thank you for opting us.