You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my trip dates of my existing reservation as my plan to go for trekking got postponed. Can you help me?

ASSISTANT: Sure, may I know your name?

USER: I am Jennifer Hernandez.

ASSISTANT: Wait a minute, let me check your reservation status.

USER: Sure, I will wait.

ASSISTANT: We found your earlier reservation, can I know your source and destination airport codes?

USER: I need to start from IAH and reach LAX.

ASSISTANT: May I know your new trip dates?

USER: I will leave on Oct 3rd and come back on Oct 5th.

ASSISTANT: Can I know, which airline do you prefer?

USER: I a bit concerned with the safety, please find me a well know airline.

ASSISTANT: Sure, wait a minute.

USER: Ok, I will.

ASSISTANT: There is a flight on Hawaiian airline, flight number 1005 with the fare of 100. Can I book your ticket?

USER: Fine, please proceed.

ASSISTANT: Your request for changing reservation has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.