You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Samantha Davis here.

ASSISTANT: How may I aid you?

USER: I would like to travel from LAX to HOU to visit Houston, can you please help me to reserve my ticket?

ASSISTANT: Sure, please tell me your planned journey dates.

USER: Ok, my preferable dates of journey is from 07/04 to 07/06. Please make sure that the price limit is 200.

ASSISTANT: The Delta airline with flight number 1003 is available. Shall I proceed?

USER: Ok, please proceed with this ticket.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for your appreciable service.

ASSISTANT: Thank you for opting us.